A mobile interface with a stack of recipe cards that can be swiped left or right, mimicking the Tinder dating app interaction

Tinder-style Swipeable Card Stack

This is a Tinder-style Swipeable Card Stack. It replicates the iconic “swipe-left, swipe-right” user interface for decision-making. Its function is to provide a mobile-first, gesture-driven method for navigating through a collection of items (in this case, recipe cards), where each card is physically dragged and dismissed to reveal the next one in the stack. (Requires: Hammer.js)

Technologies:
HTML CSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
Gesture Swiping Infinite Card Loop Dynamic Stacking
Code by: leimapapa leimapapa
License: MIT
A full-screen WebGL gallery with large photographs that distort with a sine wave effect on mouse hover and a radial blur based on scroll speed.

Twisted Wave GLSL Image Gallery

This is a Twisted Wave GLSL Image Gallery. It’s a high-performance, full-screen WebGL experience that uses custom shaders to create sophisticated visual effects. Its function is to transform a standard image carousel into a cinematic journey with two distinct interactions: a localized sine-wave distortion on mouse hover and a global radial blur that intensifies with the speed of the scroll. (Requires: Three.js, GSAP, Locomotive Scroll, Maku.js, imagesLoaded)

Technologies:
HTML CSS JavaScript GLSL Three.js
Difficulty: Advanced
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
GLSL Shaders Mouse-Hover Distortion Scroll-Based Post-Processing Locomotive Scroll
Code by: alphardex alphardex
License: MIT
Animated to-do list checkbox that transforms into a strikethrough line that crosses out the task text when checked

Animated Striking Checkbox

This is an Animated Striking Checkbox. It transforms a standard checkbox into a highly expressive UI element that physically becomes the strikethrough line for its associated label. Its function is to provide satisfying, immediate feedback for to-do list items, visually linking the action of checking a box to the result of striking out the text.

Technologies:
HTML CSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
Strikethrough Animation Morphing UI Dark Mode
Code by: Jon Kantner Jon Kantner
License: MIT

See the Pen Animated Striking Checkbox.

Animated interface switching between card and list layouts using the FLIP technique to smoothly interpolate element positions and scales.

FLIP Animated Responsive Grid Switcher

This is an Animated FLIP Grid Switcher. It bridges the gap between two distinct visual states — Card and List — by mathematically calculating the delta of motion. The component ensures that interface elements do not simply “jump” during a layout change but glide organically into their new coordinates, maintaining spatial continuity for the user.

Technologies:
HTML SCSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
FLIP Technique Layout Switching CSS Variables
Code by: @keyframers @keyframers
License: MIT
A mobile UI mockup showing a list of letters expanding from a stacked position using scroll-linked GSAP animations.

GSAP ScrollTrigger List Expansion

This snippet showcases a GSAP ScrollTrigger List Expansion effect. It mimics the native iOS “Notification Center” or “Wallet” card stack behavior. Its function is to condense a long list of items into a compact, layered visual stack, and then fluidly expand them into full, scrollable cards as the user scrolls down the container, creating a highly tactile mobile UI experience. (Requires: GSAP, ScrollTrigger)

Technologies:
HTML SCSS JavaScript
Difficulty: Advanced
Browser Support (as of Mar 2026):
Chrome Chrome 80+ Edge Edge 80+ Firefox Firefox 75+ Safari Safari 13.1+
Features:
ScrollTrigger Card Stack Effect CSS Clip-path Responsive Mobile Mockup
Code by: Aaron Iker Aaron Iker
License: MIT
Animated task list item with morphing SVG flag and interactive checkbox including strike-through text effect

Interactive Morphing Task List Item

This Interactive Morphing Task List Item is a high-fidelity productivity component. It combines path interpolation with auditory feedback to validate user actions. Its function is to elevate simple “to-do” lists into rewarding, tactile experiences through state-driven motion. (Requires: GSAP, MorphSVGPlugin)

Technologies:
HTML SCSS JavaScript
Difficulty: Advanced
Browser Support (as of Mar 2026):
Modern Browsers
Features:
SVG Morphing Audio Feedback Micro-interactions
Code by: Aaron Iker Aaron Iker
License: MIT
High-resolution urban photography transitioning with a radial zoom blur effect controlled by mouse coordinates in WebGL

Cinematic Zoom Blur Image Gallery

This is a Cinematic Zoom Blur Image Gallery. It utilizes custom GLSL fragment shaders and Three.js to create a high-fidelity transition between image textures. Its function is to provide an immersive navigational layer for visual portfolios, where spatial depth and radial blur replace standard linear crossfades. (Requires: Three.js, GSAP)

Technologies:
HTML CSS JavaScript
Difficulty: Advanced
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
Shader Transitions Mouse Tracking Smooth Lerp GPU Rendering
Code by: Kevin Levron Kevin Levron
License: MIT
Vertical side scroll progress bar with a purple to red gradient effect that fills based on scroll depth using vanilla JavaScript

Gradient Vertical Scroll Progress Bar

This is a Gradient Vertical Scroll Progress Bar. It maps the user’s vertical position to a visual meter along the right edge of the viewport. Its function is to provide an unobtrusive sense of reading progress without cluttering the main content area.

Technologies:
HTML CSS JavaScript
Difficulty: Beginner
Browser Support (as of Mar 2026):
Chrome Chrome 61+ Edge Edge 17+ Firefox Firefox 64+ Safari Safari 11+
Features:
Scroll Tracking Gradient Fill Dynamic Opacity
Code by: Emma Bostian Emma Bostian
License: MIT
Minimalist dark canvas background featuring floating orange and black geometric particles like lines and bubbles moving with random velocities.

Minimalist Canvas Animated Particle Background

The Minimalist Canvas Animated Particle Background is an ambient UI element that generates a field of drifting geometric shapes. It serves as a non-intrusive aesthetic layer for headers or landing pages, providing depth through motion. The system alternates between “bubbles” and spinning “lines” to create a technical yet organic atmosphere. (Requires: Lodash)

Technologies:
HTML SCSS Babel
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 36+ Edge Edge 12+ Firefox Firefox 31+ Safari Safari 9+
Features:
Procedural Generation Particle Recycling 60FPS Rendering
Code by: Adrian Ortega Adrian Ortega
License: MIT
Dual series amCharts doughnut visualization with blue and purple segments and a central total sum label on a clean white background

Nested Animated Doughnut Data Visualization

This component is a Nested Animated Doughnut Data Visualization built with the amCharts 4 framework. It renders two concentric data series within a single circular coordinate system. Its function is to provide a high-density comparison of related metrics, utilizing a central dynamic label to summarize the aggregate total. (Requires: amCharts 4)

Technologies:
HTML CSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
Dual Series Central Totalizer HSL Stepping Animated Entry
License: MIT
Interactive SVG jigsaw puzzle where pieces fly from the viewport edges and rotate to form a complete image as the user scrolls down the page.

Scroll-Driven Jigsaw Puzzle Assembler

This is a Scroll-Driven Jigsaw Puzzle Assembler. It utilizes SVG patterns and CSS variables to deconstruct a single image into interactive, interlocking pieces. Its function is to provide a cinematic content reveal where scrolling physically assembles the visual asset from a scattered state into a coherent whole.

Technologies:
HTML Sass JavaScript
Difficulty: Advanced
Browser Support (as of Mar 2026):
Chrome Chrome 80+ Edge Edge 80+ Firefox Firefox 75+ Safari Safari 13.1+
Features:
Scroll-Driven Animation Drag-and-Drop Upload Dynamic Math Calculations Responsive Layout
License: MIT
Animated semicircular radar gauge with rounded bars for carbon and energy metrics, utilizing colorful category labels and amCharts library styling

Semicircular Animated Radar Gauge

This is a Semicircular Animated Radar Gauge built with the amCharts 4 engine. It distills complex metrics like Carbon and Energy into a high-contrast radial format that covers only 270 degrees of a circle. Its function is to provide an at-a-glance KPI status within professional data dashboards, replacing cluttered line charts with clean, weighted arcs. (Requires: amCharts 4)

Technologies:
HTML CSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
Radial Progress Dynamic Theming Rounded Columns Animated Entry
Code by: Doug Wolf Doug Wolf
License: MIT
3D skeuomorphic checkbox toggle with an elastic sliding animation and a fixed background grid effect using pure CSS

Skeuomorphic 3D Elastic Toggle Switch

This is a Skeuomorphic 3D Elastic Toggle Switch. It utilizes multi-layered shadowing and complex keyframe sequences to mimic a physical sliding component embedded in a technical grid. Its function is to transform a standard checkbox into a high-fidelity micro-interaction that emphasizes physical mass and momentum.

Technologies:
HTML CSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 43+ Edge Edge 12+ Firefox Firefox 16+ Safari Safari 9+
Features:
3D Skeuomorphism Elastic Animation Fixed Background
Code by: Jon Kantner Jon Kantner
License: MIT
3D skeuomorphic desk calendar with realistic paper stack depth and a neon glow effect in dark mode using CSS skew and box-shadows.

Skeuomorphic Lunar Desk Calendar

The Skeuomorphic Lunar Desk Calendar is a digital recreation of the traditional “Hardware Store Calendar”. It bridges the gap between physical paper textures and dynamic digital logic, providing users with both Gregorian and Lunar dates. Its function is to serve as a high-fidelity desktop widget that celebrates heritage design through modern CSS geometry.

Technologies:
Pug Sass JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 80+ Edge Edge 80+ Firefox Firefox 75+ Safari Safari 13.5+
Features:
Lunar Date Engine 3D Perspective Neon Dark Mode Real-time Clock
Code by: Erica Erica
License: MIT
Minimalist 3D book mockup with interactive flipping pages displaying high-resolution photography on a textured background.

Interactive 3D Flip Book Gallery

This is an Interactive 3D Flip Book Gallery. It simulates a physical book structure where each element acts as a double-sided page. Its function is to showcase images through spatial depth, replacing standard flat carousels with a tactile flipping mechanic.

Technologies:
HTML CSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 85+ Edge Edge 85+ Safari Safari 16.4+ Firefox Firefox 128+
Features:
3D Perspective Page Turning Stacked Layout Auto-Closure
Code by: Daniel Muñoz Daniel Muñoz
License: MIT
Clean digital magazine layout with asymmetric CSS Grid columns, sticky section labels, and grayscale photography

Minimalist Grid Editorial Layout

This is a Minimalist Grid Editorial Layout built for digital publishing. It translates traditional Swiss print design into a responsive web format using CSS Grid. The layout utilizes asymmetric columns and deliberate negative space to establish a clear hierarchy for long-form reading.

Technologies:
HTML CSS
Difficulty: Beginner
Browser Support (as of Mar 2026):
Chrome Chrome 88+ Edge Edge 88+ Firefox Firefox 85+ Safari Safari 14.1+
Features:
Asymmetric Grid Sticky Labels Fluid Typography Print Aesthetic
Code by: Gemma Croad Gemma Croad
License: MIT
A grid of four product cards featuring inset shadows, fluid typography, and dynamic accent colors based on OKLCH color space.

Modern Container Query Product Cards

This snippet showcases Modern Container Query Product Cards. It represents the bleeding edge of CSS architecture, utilizing @scope, @layer, and @property to create highly encapsulated, fluid components. Its function is to provide a robust e-commerce card layout that automatically adjusts its internal styling and grid distribution based on the physical size of its container, not the viewport. (Requires: kiso.css)

Technologies:
HTML CSS
Difficulty: Advanced
Browser Support (as of Mar 2026):
Chrome Chrome 118+ Edge Edge 118+ Firefox Firefox 128+ Safari Safari 17.4+
Features:
Container Queries CSS Scope OKLCH Colors Fluid Typography
Code by: tak-dcxi tak-dcxi
License: MIT
A retro arcade Pong game interface with glowing neon paddles, a bright cyan ball, and CRT scanline effects on a dark background.

Neon Vaporwave Pong Game

This is a Neon Vaporwave Pong Game (“CODEPONG 26”). It is a complete, browser-based arcade game rendered via the HTML5 Canvas 2D API. Its function is to provide a highly polished, playable experience that demonstrates advanced frontend techniques, including a custom physics engine, an adaptive AI opponent that gets harder as the game progresses, and programmatic audio synthesis for sound effects. (Requires: FontAwesome)

Technologies:
HTML CSS JavaScript
Difficulty: Advanced
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
Canvas 2D Rendering Adaptive AI Particle Physics Web Audio API CRT Filter Effects
Code by: Matt Cannon Matt Cannon
License: MIT

See the Pen Neon Vaporwave Pong Game.

Black and white optical illusion geometric pattern generated with pure CSS gradients

Optical Illusion CSS Background Pattern

This is an Optical Illusion CSS Background Pattern. It generates a complex, interlocking geometric tessellation using only mathematical gradient overlays. Its function is to provide a visually striking, lightweight background texture without requiring external image assets.

Technologies:
CSS
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 69+ Edge Edge 79+ Firefox Firefox 83+ Safari Safari 12.1+
Features:
Pure CSS Gradient Overlays Minimal Footprint
License: MIT
Black and white optical illusion pattern featuring a central circle that appears to pulse against a striped background, created with pure CSS gradients

Pulsing Circle Optical Illusion

This is a Pulsing Circle Optical Illusion. It generates a static, high-contrast geometric pattern that exploits peripheral vision to create a false sense of motion. Its function is to serve as a lightweight, visually arresting background or artistic centerpiece using only a handful of CSS properties and zero JavaScript.

Technologies:
CSS
Difficulty: Beginner
Browser Support (as of Mar 2026):
Chrome Chrome 69+ Edge Edge 79+ Firefox Firefox 83+ Safari Safari 12.1+
Features:
Optical Illusion Pure CSS No Animation
License: MIT
Two colored boxes (yellow and blue) moving horizontally across a black and white striped background, demonstrating the stepping feet illusion.

Stepping Feet Optical Illusion

This is the Stepping Feet Optical Illusion. It demonstrates how high-contrast patterns interfere with human motion perception. Two colored blocks move at identical, constant speeds, yet appear to stagger and “step” like feet. A hover interaction removes the background grid to expose the mathematical reality of their parallel movement.

Technologies:
CSS
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 105+ Edge Edge 105+ Firefox Firefox 121+ Safari Safari 16.4+
Features:
Pseudo-elements Keyframe Animation Linear Gradients
License: MIT
A bright yellow button with an animated dashed border that draws itself around the perimeter on hover, along with corner dots that appear sequentially.

Animated Border Drawing Button

This is an Animated Border Drawing Button. It transforms a standard call-to-action into a multi-stage micro-interaction. Upon hovering over the button, the component triggers a sequential animation where four corner dots appear, followed by four dashed border lines that “draw” themselves around the button’s perimeter, creating a high-end, futuristic feel.

Technologies:
HTML CSS
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 105+ Edge Edge 105+ Firefox Firefox 121+ Safari Safari 15.4+
Features:
Staggered Animation CSS :has() Pure CSS
Code by: dexter-st dexter-st
License: MIT
Loading...
<div class="btn-wrapper">
  <div class="line horizontal top"></div>
  <div class="line vertical right"></div>
  <div class="line horizontal bottom"></div>
  <div class="line vertical left"></div>

  <div class="dot top left"></div>
  <div class="dot top right"></div>
  <div class="dot bottom right"></div>
  <div class="dot bottom left"></div>

  <button class="btn">
    <span class="btn-text">start designing</span>
    <svg class="btn-svg" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
      <path
        d="M17.6744 11.4075L15.7691 17.1233C15.7072 17.309 15.5586 17.4529 15.3709 17.5087L3.69348 20.9803C3.22819 21.1186 2.79978 20.676 2.95328 20.2155L6.74467 8.84131C6.79981 8.67588 6.92419 8.54263 7.08543 8.47624L12.472 6.25822C12.696 6.166 12.9535 6.21749 13.1248 6.38876L17.5294 10.7935C17.6901 10.9542 17.7463 11.1919 17.6744 11.4075Z"
      ></path>
      <path d="M3.2959 20.6016L9.65986 14.2376"></path>
      <path
        d="M17.7917 11.0557L20.6202 8.22724C21.4012 7.44619 21.4012 6.17986 20.6202 5.39881L18.4989 3.27749C17.7178 2.49645 16.4515 2.49645 15.6704 3.27749L12.842 6.10592"
      ></path>
      <path
        d="M11.7814 12.1163C11.1956 11.5305 10.2458 11.5305 9.66004 12.1163C9.07426 12.7021 9.07426 13.6519 9.66004 14.2376C10.2458 14.8234 11.1956 14.8234 11.7814 14.2376C12.3671 13.6519 12.3671 12.7021 11.7814 12.1163Z"
      ></path>
    </svg>
  </button>
</div>
body {
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  padding: 0;
}

/* From Uiverse.io by dexter-st */ 
.btn-wrapper {
  --dot-size: 6px;
  --line-weight: 1px;
  --line-distance: 0.9rem 1.1rem;
  --animation-speed: 0.35s;
  --dot-color: #666;
  --line-color: #999;

  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: auto;
  height: auto;
  padding: var(--line-distance);
  background-color: #0000;
  transition: background-color 0.3s ease-in-out;
  user-select: none;
}

.btn-wrapper:has(.btn:hover) {
  animation: backround-color-change calc(var(--animation-speed) * 4) ease-in-out
    forwards;
}
@keyframes backround-color-change {
  80% {
    background-color: #0000;
  }
  100% {
    background-color: #e5ff0055;
  }
}

.btn {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.8rem 1.25rem;
  background-color: #e5ff00;
  background-image: linear-gradient(#0000, #0004);
  border: none;

  color: #0008;
  font-family: "Inter", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  text-transform: capitalize;

  border-radius: 30% / 200%;
  cursor: pointer;

  box-shadow:
    0 0 0px 1px #0003,
    0px 1px 1px rgba(3, 7, 18, 0.02),
    0px 5px 4px rgba(3, 7, 18, 0.04),
    0px 12px 9px rgba(3, 7, 18, 0.06),
    0px 20px 15px rgba(3, 7, 18, 0.08),
    0px 32px 24px rgba(3, 7, 18, 0.1);

  transition:
    background-color 0.2s ease-in-out,
    transform 0.2s ease-in-out,
    box-shadow 0.2s ease-in-out,
    border-radius 0.3s ease-in-out,
    border-color 0.2s ease-in-out;
}

.btn:hover {
  background-color: #fff;
  transform: scale(1.05);
  border-radius: 10% / 200%;
}
.btn:active {
  background-color: #e5ff00;
  transform: scale(0.98);
  border-radius: 20% / 200%;
}

.btn-svg {
  margin-left: 0.5rem;
  height: 24px;
  stroke-width: 1;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke: #0007;
  fill: #fffa;
  transition: all 0.3s ease-in-out;
}

.btn:hover .btn-svg {
  stroke: #0008;
  fill: #e5ff00;
}
.btn:active .btn-svg {
  stroke: #0009;
  fill: #f1ff76;
}

/* Dots */
.dot {
  position: absolute;
  width: var(--dot-size);
  aspect-ratio: 1;
  border-radius: 50%;
  background-color: var(--dot-color);
  transition: all 0.3s ease-in-out;
  opacity: 0;
}

.btn-wrapper:has(.btn:hover) .dot.top.left {
  top: 50%;
  left: 20%;
  animation: move-top-left var(--animation-speed) ease-in-out forwards;
}
@keyframes move-top-left {
  90% {
    opacity: 0.6;
  }
  100% {
    top: calc(var(--dot-size) * -0.5);
    left: calc(var(--dot-size) * -0.5);
    opacity: 1;
  }
}
.btn-wrapper:has(.btn:hover) .dot.top.right {
  top: 50%;
  right: 20%;
  animation: move-top-right var(--animation-speed) ease-in-out forwards;
  animation-delay: calc(var(--animation-speed) * 0.6);
}
@keyframes move-top-right {
  80% {
    opacity: 0.6;
  }
  100% {
    top: calc(var(--dot-size) * -0.5);
    right: calc(var(--dot-size) * -0.5);
    opacity: 1;
  }
}
.btn-wrapper:has(.btn:hover) .dot.bottom.right {
  bottom: 50%;
  right: 20%;
  animation: move-bottom-right var(--animation-speed) ease-in-out forwards;
  animation-delay: calc(var(--animation-speed) * 1.2);
}
@keyframes move-bottom-right {
  80% {
    opacity: 0.6;
  }
  100% {
    bottom: calc(var(--dot-size) * -0.5);
    right: calc(var(--dot-size) * -0.5);
    opacity: 1;
  }
}
.btn-wrapper:has(.btn:hover) .dot.bottom.left {
  bottom: 50%;
  left: 20%;
  animation: move-bottom-left var(--animation-speed) ease-in-out forwards;
  animation-delay: calc(var(--animation-speed) * 1.8);
}
@keyframes move-bottom-left {
  80% {
    opacity: 0.6;
  }
  100% {
    bottom: calc(var(--dot-size) * -0.5);
    left: calc(var(--dot-size) * -0.5);
    opacity: 1;
  }
}

/* Lines */
.line {
  position: absolute;
  transition: all 0.3s ease-in-out;
}
.line.horizontal {
  height: var(--line-weight);
  width: 100%;
  background-image: repeating-linear-gradient(
    90deg,
    #0000 0 calc(var(--line-weight) * 2),
    var(--line-color) calc(var(--line-weight) * 2) calc(var(--line-weight) * 4)
  );
}
.line.top {
  top: calc(var(--line-weight) * -0.5);
}
.line.bottom {
  bottom: calc(var(--line-weight) * -0.5);
}
.line.vertical {
  width: var(--line-weight);
  height: 100%;
  background-image: repeating-linear-gradient(
    0deg,
    #0000 0 calc(var(--line-weight) * 2),
    var(--line-color) calc(var(--line-weight) * 2) calc(var(--line-weight) * 4)
  );
}
.line.left {
  left: calc(var(--line-weight) * -0.5);
}
.line.right {
  right: calc(var(--line-weight) * -0.5);
}

.line.top {
  transform-origin: top left;
  transform: rotate(5deg) scaleX(0);
}
.btn-wrapper:has(.btn:hover) .line.top {
  animation: draw-top var(--animation-speed) ease-in-out forwards;
  animation-delay: calc(var(--animation-speed) * 0.8);
}
@keyframes draw-top {
  100% {
    transform: rotate(0deg) scaleX(1);
  }
}
.line.bottom {
  transform-origin: bottom right;
  transform: rotate(5deg) scaleX(0);
}
.btn-wrapper:has(.btn:hover) .line.bottom {
  animation: draw-bottom var(--animation-speed) ease-in-out forwards;
  animation-delay: calc(var(--animation-speed) * 2);
}
@keyframes draw-bottom {
  100% {
    transform: rotate(0deg) scaleX(1);
  }
}

.line.left {
  transform-origin: bottom left;
  transform: rotate(0deg) scaleY(0);
}
.btn-wrapper:has(.btn:hover) .line.left {
  animation: draw-left var(--animation-speed) ease-in-out forwards;
  animation-delay: calc(var(--animation-speed) * 2.4);
}
@keyframes draw-left {
  100% {
    transform: rotate(0deg) scaleY(1);
  }
}

.line.right {
  transform-origin: top right;
  transform: rotate(5deg) scaleY(0);
}
.btn-wrapper:has(.btn:hover) .line.right {
  animation: draw-right var(--animation-speed) ease-in-out forwards;
  animation-delay: calc(var(--animation-speed) * 1.4);
}
@keyframes draw-right {
  100% {
    transform: rotate(0deg) scaleY(1);
  }
}
A bold white typography title 'Animation' where letters float and tilt on hover, accompanied by a dynamic Lottie sparkle effect in the background

DotLottie Interactive Sparkle Header

This is a DotLottie Interactive Sparkle Header. It blends high-performance character-level typography effects with the modern DotLottie animation format. Its function is to create a delightful, “juicy” hero interaction: when a user hovers over the title, the letters individually react with a staggered lift-and-tilt motion, while a complex Lottie sparkle animation plays in the background. (Requires: @lottiefiles/dotlottie-web)

Technologies:
HTML SCSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 80+ Edge Edge 80+ Firefox Firefox 75+ Safari Safari 13+
Features:
DotLottie Integration Letter-by-Letter Stagger Hover Interaction Reduced Motion Support
Code by: Carmen Ansio Carmen Ansio
License: MIT
A sleek, pill-shaped button with advanced glassmorphic and iridescent effects that glow and shift on hover

Iridescent 3D Neumorphic Button

This is an Iridescent 3D Neumorphic Button. It pushes CSS styling to the limit, using stacked gradients, oklch color spaces, and advanced blend modes to create a button that feels like a piece of polished, translucent hardware. Its function is to serve as a high-fidelity “Hero” element, delivering a tactile, light-responsive experience that feels alive under the cursor.

Technologies:
HTML CSS
Difficulty: Advanced
Browser Support (as of Mar 2026):
Chrome Chrome 105+ Edge Edge 105+ Firefox Firefox 121+ Safari Safari 15.4+
Features:
Iridescent Gradient Complex Layered Shadows Neumorphic Depth Blending Modes
Code by: Simey Simey
License: MIT
Loading...
<main id="app">
    
    <button class="iridescent">
        Refract
        <span class="drop-shadow"></span>
    </button>

</main>

<aside>
    <p>Resize browser to scale button</p>
    
    <hr>
    
    <p>Based on / Inspired by <strong>Wojciech Zieliński</strong>'s 
        <a href="https://x.com/zielinskiwoj/status/1956001707533509011" target="_blank">Tweet</a> &amp; 
        <a href="https://x.com/zielinskiwoj/status/1955291261327315098" target="_blank">This one, too</a></p>
    
</aside>

<!-- social icons -->
<a class="social-icon codepen" href="https://codepen.io/simeydotme" title="view my codepens">
    Made by Simey
</a>

<a class="social-icon twitter" href="https://twitter.com/simeydotme">
    <svg viewBox="0 0 24 24">
        <path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
        <path d="M22 4.01c-1 .49 -1.98 .689 -3 .99c-1.121 -1.265 -2.783 -1.335 -4.38 -.737s-2.643 2.06 -2.62 3.737v1c-3.245 .083 -6.135 -1.395 -8 -4c0 0 -4.182 7.433 4 11c-1.872 1.247 -3.739 2.088 -6 2c3.308 1.803 6.913 2.423 10.034 1.517c3.58 -1.04 6.522 -3.723 7.651 -7.742a13.84 13.84 0 0 0 .497 -3.753c-.002 -.249 1.51 -2.772 1.818 -4.013z"></path>
    </svg>
</a>
<a class="social-icon github" href="https://github.com/simeydotme">
    <svg viewBox="0 0 24 24">
        <path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
        <path d="M9 19c-4.3 1.4 -4.3 -2.5 -6 -3m12 5v-3.5c0 -1 .1 -1.4 -.5 -2c2.8 -.3 5.5 -1.4 5.5 -6a4.6 4.6 0 0 0 -1.3 -3.2a4.2 4.2 0 0 0 -.1 -3.2s-1.1 -.3 -3.5 1.3a12.3 12.3 0 0 0 -6.2 0c-2.4 -1.6 -3.5 -1.3 -3.5 -1.3a4.2 4.2 0 0 0 -.1 3.2a4.6 4.6 0 0 0 -1.3 3.2c0 4.6 2.7 5.7 5.5 6c-.6 .6 -.6 1.2 -.5 2v3.5"></path>
    </svg>
</a>

<svg class="arrow" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512">
    <path d="M0 55.2L0 426c0 12.2 9.9 22 22 22c6.3 0 12.4-2.7 16.6-7.5L121.2 346l58.1 116.3c7.9 15.8 27.1 22.2 42.9 14.3s22.2-27.1 14.3-42.9L179.8 320l118.1 0c12.2 0 22.1-9.9 22.1-22.1c0-6.3-2.7-12.3-7.4-16.5L38.6 37.9C34.3 34.1 28.9 32 23.2 32C10.4 32 0 42.4 0 55.2z"/>
</svg>
@import url(https://fonts.bunny.net/css?family=amaranth:400,400i,700,700i|asap-condensed:200,300i,400,400i,600,700,900|m-plus-1-code:400,500,600,700);

:root {
  --h: 222;
  --s: 20%;
  --l: 22%;
  
  --canvas: var(--h);
  --bg: hsl(var(--canvas), 15%, 22%);
  --fg: hsl(var(--canvas), 39%, 95%);
  --link-light: hsl(var(--canvas), 95%, 60%);
  --link-dark: hsl(var(--canvas), 95%, 70%);
  --link-light-hover: hsl(150, 80%, 45%);
  --link-dark-hover: hsl(150, 95%, 70%);
  --link: light-dark( var(--link-light), var(--link-dark) );
  --linkh: light-dark( var(--link-light-hover), var(--link-dark-hover) );
  --wgt: 200;

  --light: hsl(var(--h), var(--s), 95%);
  --dark: hsl(var(--h), var(--s), 20%);
  --tint: hsl(160, 85%, 60%);
  --tint2: hsl(200, 85%, 60%);
  --pads: 16px;
  --cols: 1fr;
  --radius: 16px;
  
  --bor: hsl(var(--h), var(--s), 85%);
  --labels: hsl(var(--h), var(--s), 55%);
  --b: hsla(var(--h), var(--s), 100%, 1);
  --svg: var(--fg);
  
  --thumb-shadow: 
      0px 1px 0px rgba(17,17,26,0), 
      0px 2px 2px rgba(17,17,26,0), 
      0px 4px 4px rgba(17,17,26,0);
  
  --thumb-shadow-on: 
      0px 1px 0px rgba(17,17,26,0.2), 
      0px 2px 6px rgba(17,17,26,0.2), 
      0px 4px 12px rgba(17,17,26,0.2);
  
  --spring: linear(
    0, 0.009, 0.035 2.1%, 0.142 4.6%, 0.283 6.9%, 0.726 13.3%, 0.941 17.2%, 1.02,
    1.08, 1.124, 1.153 24.9%, 1.163, 1.167, 1.165, 1.157 30.7%, 1.132 33.7%,
    1.051 40.7%, 1.017 44.2%, 0.99, 0.975 52.2%, 0.972 55.2%, 0.974 58.5%,
    0.996 71.5%, 1.003, 1.005 85.7%, 1
  );
    
  --bounce: linear(0, 0.199 14.6%, 0.37 23.8%, 0.591 32.2%, 0.999 44.7%, 0.793 52.7%, 
    0.745 56.1%, 0.728 59.5%, 0.74 62.5%, 0.778 65.7%, 0.999 77.4%, 0.956 81.3%, 0.943 
    84.9%, 0.951 88%, 0.993 95.5%, 1);
    
}

#app {
  display: grid;
  grid-template-columns: var(--cols);
  gap: var(--pads);
  min-height: 100%;
}

body {
  padding: calc(var(--pads) * 1.5);
  font-family: 'Asap Condensed', sans-serif;
  font-weight: 400;
  font-size: 1rem;
  color: var(--fg);
  background-color: #171820;
  background-image: linear-gradient(
    180deg,
    hsl(var(--h), var(--s), 8%),
    hsl(var(--h), var(--s), 14%)
  );
  background-size: cover;
}

body,
html {
  min-height: 100%;
}

* {
  box-sizing: border-box;
}

form,
.form,
.light {
  --bg: var(--light);
  --fg: var(--dark);
}

form,
.form {
  color: var(--fg);
  background-color: var(--bg);
  min-width: 100%;
  width: 100%;
  padding: calc(var(--pads) * 0.5) calc(var(--pads) * 1.5) calc(var(--pads) * 1);
  border-radius: var(--radius);
  box-shadow: 0 2px 3px hsla(var(--h), var(--s), 8%, 50%);
}

.dark {
  
  color-scheme: dark!important;
  
  --bor: hsl(var(--h), var(--s), 35%);
  --bg: var(--dark);
  --fg: var(--light);
  --labels: hsl(var(--h), var(--s), 65%);
  --b: hsla(var(--h), var(--s), 12%, 1);
  --tint: hsl(260, 85%, 60%);
  --tint2: hsl(300, 85%, 60%);
}

fieldset {
  min-width: 100%;
  width: 100%;
  border: 1px solid var(--bor);
  border-radius: calc(var(--radius) / 2);
  padding: var(--pads) calc(var(--pads) * 1.5);
  margin-block: var(--pads);
}

legend {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0 2em;
  transform: translateX(-1em);
}

label {
  display: block;
  width: -webkit-max-content;
  width: -moz-max-content;
  width: max-content;
  font-size: 0.875rem;
  text-transform: uppercase;
  -webkit-margin-start: 0;
  margin-inline-start: 0;
  -webkit-margin-after: 0.5em;
  margin-block-end: 0.5em;
  color: var(--labels);
  transition: all 0.5s ease;
}

.field:focus-within label {
  color: var(--fg);
}

.field {
  margin-block: 2.5em;
  container-type: inline-size;
}

.field:nth-of-type(1) {
  -webkit-margin-before: 1em;
  margin-block-start: 1em;
}

.field:nth-last-of-type(1) {
  -webkit-margin-after: 1em;
  margin-block-end: 1em;
}

input,
select,
button,
textarea {
  font-family: inherit;
  color: var(--fg);
  background: var(--b);
  padding: 0.875em;
  border-radius: calc(var(--radius) / 2);
  border: 1px solid transparent;
  outline: 1px solid transparent;
  accent-color: var(--tint2);
  box-shadow: 0 3px 2px -3px var(--bor);
  transition: border 0.3s ease-in, outline 0.6s ease-in, box-shadow 0.6s ease-in;
}
input,
select, 
textarea {
  width: clamp(50%, 20em, 100%);
}
input:focus,
select:focus,
button:focus,
textarea:focus {
  border-color: var(--tint);
  outline-color: var(--tint2);
  transition: border 0.6s ease-out, outline 0.3s ease-out,
    box-shadow 0.3s ease-out;
}
input::-moz-placeholder,
select::-moz-placeholder,
button::-moz-placeholder,
textarea::-moz-placeholder {
  opacity: 0.33;
  font-style: italic;
}
input:-ms-input-placeholder,
select:-ms-input-placeholder,
button:-ms-input-placeholder,
textarea:-ms-input-placeholder {
  opacity: 0.33;
  font-style: italic;
}
input::-moz-placeholder, select::-moz-placeholder, button::-moz-placeholder, textarea::-moz-placeholder {
  opacity: 0.33;
  font-style: italic;
}
input:-ms-input-placeholder, select:-ms-input-placeholder, button:-ms-input-placeholder, textarea:-ms-input-placeholder {
  opacity: 0.33;
  font-style: italic;
}
input::placeholder,
select::placeholder,
button::placeholder,
textarea::placeholder {
  opacity: 0.33;
  font-style: italic;
}

textarea {
  width: 100%;
  min-height: 10em;
  resize: vertical;
  display: block;
}

select {
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  background-image: url('data:image/svg+xml; utf8, <svg width="16px" height="16px" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M12.2929,5.292875 C12.6834,4.902375 13.3166,4.902375 13.7071,5.292875 C14.0976,5.683375 14.0976,6.316555 13.7071,6.707085 L8.70711,11.707085 C8.31658,12.097605 7.68342,12.097605 7.29289,11.707085 L2.29289,6.707085 C1.90237,6.316555 1.90237,5.683375 2.29289,5.292875 C2.68342,4.902375 3.31658,4.902375 3.70711,5.292875 L8,9.585765 L12.2929,5.292875 Z"  style="fill: hsl(222,20%,40%);"/></svg>');
  background-size: 1em;
  background-position: calc(100% - 1em) 50%;
  background-repeat: no-repeat;
}
.dark select {
  background-image: url('data:image/svg+xml; utf8, <svg width="16px" height="16px" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M12.2929,5.292875 C12.6834,4.902375 13.3166,4.902375 13.7071,5.292875 C14.0976,5.683375 14.0976,6.316555 13.7071,6.707085 L8.70711,11.707085 C8.31658,12.097605 7.68342,12.097605 7.29289,11.707085 L2.29289,6.707085 C1.90237,6.316555 1.90237,5.683375 2.29289,5.292875 C2.68342,4.902375 3.31658,4.902375 3.70711,5.292875 L8,9.585765 L12.2929,5.292875 Z"  style="fill: hsl(222,20%,70%);"/></svg>');
}

input[type="radio"],
input[type="checkbox"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  width: calc(1em + 8px);
  height: calc(1em + 8px);
  outline: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border-radius: 100%;
}
input[type="radio"],
input[type="radio"]:after,
input[type="checkbox"] {
  transition: all 0.4s ease-in;
  background-clip: padding-box;
}
input[type="radio"]:focus,
input[type="radio"]:focus:after,
input[type="checkbox"]:focus {
  transition: all 0.3s ease-out, scale 0.5s var(--spring);
}
input[type="radio"]:after,
input[type="checkbox"]:after {
  content: "";
  width: calc(100% - 8px);
  height: calc(100% - 8px);
  background: transparent;
  border-radius: 100%;
  opacity: 0.9;
  scale: 0.2;
}
input[type="radio"]:checked:after,
input[type="checkbox"]:checked:after {
  background: var(--fg);
  scale: 1;
}
input[type="radio"]:focus,
input[type="checkbox"]:focus {
  background-color: var(--tint);
  background-image: linear-gradient( to bottom right, transparent, var(--tint2) 150% );
}
input[type="radio"]:focus:after,
input[type="checkbox"]:focus:after {
  opacity: 1;
}
input[type="radio"] + label,
input[type="checkbox"] + label,
label:has( + input[type="checkbox"].toggle.dual ) {
  text-transform: none;
  display: inline-flex;
  align-items: center;
  padding: 0 0.25em;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  transition: color 0.25s ease-out;
}
input[type="radio"]:checked + label,
input[type="checkbox"]:checked + label,
label:has( + input[type="checkbox"]:not(:checked).toggle.dual ) {
  font-weight: 600;
  color: var(--fg);
}
input[type="radio"] + label svg,
input[type="checkbox"] + label svg,
label:has( + input[type="checkbox"].toggle.dual ) svg {
  height: 20px;
  stroke-width: 1.5px;
  stroke: currentColor;
}
input[type="radio"]:checked + label svg,
input[type="checkbox"]:checked + label svg,
label:has( + input[type="checkbox"]:not(:checked).toggle.dual ) svg {
  stroke-width: 2px;
}

input[type="radio"],
input[type="checkbox"],
input[type="radio"] + label,
input[type="checkbox"] + label,
label:has( + input[type="checkbox"].toggle.dual ) {
  &:hover {
    color: var(--fg);
    + label {
      color: var(--fg);
    }
  }
}

input[type="checkbox"] {
  border-radius: 5px;
}
input[type="checkbox"]:after,
input[type="checkbox"]:focus:after {
  opacity: 0;
  translate: 0% -100%;
  scale: 1;
}
input[type="checkbox"]:after {
  transition: opacity 0.2s ease-in, translate 0.4s ease-in;
}
input[type="checkbox"]:checked:after {
  opacity: 1; 
  translate: 0% 0%;
  transition: opacity 0.15s ease-out 0.1s, translate 0.4s var(--bounce);
}
input[type="checkbox"]:after,
input[type="checkbox"]:checked:after {
  background-color: transparent;
  background-image: url('data:image/svg+xml; utf8, <svg width="16px" height="16px" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M13.7071,4.29289 C14.0976,4.68342 14.0976,5.31658 13.7071,5.70711 L7.70711,11.7071 C7.31658,12.0976 6.68342,12.0976 6.29289,11.7071 L3.29289,8.70711 C2.90237,8.31658 2.90237,7.68342 3.29289,7.29289 C3.68342,6.90237 4.31658,6.90237 4.70711,7.29289 L7,9.58579 L12.2929,4.29289 C12.6834,3.90237 13.3166,3.90237 13.7071,4.29289 Z"  style="fill: hsl(222,20%,40%);"/></svg>');
  background-size: 1.2em;
  background-position: center;
}
.dark input[type="checkbox"]:after,
.dark input[type="checkbox"]:checked:after {
  background-image: url('data:image/svg+xml; utf8, <svg width="16px" height="16px" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M13.7071,4.29289 C14.0976,4.68342 14.0976,5.31658 13.7071,5.70711 L7.70711,11.7071 C7.31658,12.0976 6.68342,12.0976 6.29289,11.7071 L3.29289,8.70711 C2.90237,8.31658 2.90237,7.68342 3.29289,7.29289 C3.68342,6.90237 4.31658,6.90237 4.70711,7.29289 L7,9.58579 L12.2929,4.29289 C12.6834,3.90237 13.3166,3.90237 13.7071,4.29289 Z"  style="fill: hsl(222,20%,95%);"/></svg>');
}

input[type="checkbox"].toggle {
  --aspect: 1.75;
  --ratio: var(--aspect)/1;
  --gap: 3px;
  
	cursor: pointer;
	text-indent: -9999px;
  width: auto;
  height: calc(1em + var(--gap) * 4);
  aspect-ratio: var(--ratio);
	display: block;
	border-radius: calc(1em + var(--gap) * 4);
	position: relative;
  padding: 0;
  background: var(--b);
}
input[type="checkbox"].toggle:after {
  content: "";
  width: auto;
  height: calc(100% - var(--gap) * 2);
  aspect-ratio: 1;
  border-radius: 99vw;
  position: absolute;
  inset: 0;
  right: auto;
  background: var(--fg);
  translate: var(--gap) var(--gap);
  transition: translate 0.5s var(--spring), scale 0.5s var(--spring), aspect-ratio 0.5s var(--spring);
  opacity: 0.9;
  scale: 0.8 0.8;
  transform-origin: left center;
  will-change: transform, translate, scale, opacity, aspect-ratio, transform-origin;
}
input[type="checkbox"].toggle.dual:after {
  aspect-ratio: 1;
}
input[type="checkbox"].toggle:active {
  &:after {
    aspect-ratio: 1.15;
  }
  &:checked:after {
    aspect-ratio: 1.2;
    transform-origin: right center;
  }
}
input[type=checkbox].toggle:where(:not(:checked)) {
  background: color-mix(in hsl, transparent, var(--b) 50%);
}
input[type=checkbox].toggle:where(:not(:checked):hover) {
  background:  var(--b);
}
input[type=checkbox].toggle:focus {
  background: color-mix(in hsl, var(--tint), var(--bg) 80%);
}
input[type=checkbox].toggle:checked:focus,
input[type=checkbox].toggle.dual:focus {
  background: var(--tint);
}
input[type=checkbox].toggle.dual:checked:focus {
  background: var(--tint2);
  border-color: var(--tint2);
}
input[type=checkbox].toggle:checked:after {
  translate: calc((1em + var(--gap) * 4) * var(--aspect) - (100% + var(--gap) + 1px) ) var(--gap);
  opacity: 0.99;
  scale: 1;
}

.range {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-block: 1em;
}
.range label {
  margin: 0;
  min-width: -webkit-max-content;
  min-width: -moz-max-content;
  min-width: max-content;
  text-transform: none;
  font-size: 0.75em;
}
.range:first-child {
  text-align: right;
}
.range:last-child {
  text-align: left;
}

input[type="range"] {
  --pad: calc(var(--pads) / 4);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: calc(100% - 1em);
  height: calc(1em + var(--pad) * 2);
  background: var(--b);
  border: none;
  outline: none;
  padding: 0 var(--pad);
  border-radius: 1em;
  &:not(:first-child) {
    -webkit-margin-start: 0.5em;
            margin-inline-start: 0.5em;
  }
  &:not(:last-child) {
    -webkit-margin-end: 0.5em;
            margin-inline-end: 0.5em;
  }
}
input[type="range"],
input[type="range"]* {
  transition: all 0.5s ease;
}

input[type="range"]::-webkit-slider-runnable-track {
  background: linear-gradient(90deg, var(--tint) -25%, var(--tint2) 125%);
  display: block;
  width: calc(100% + var(--pad) * 2);
  height: calc(1em + var(--pad) * 2);
  border-radius: 1em;
  margin-inline: calc(var(--pad) * -1);
  -webkit-transition: opacity 0.5s ease-in, background 0.5s ease-in;
  transition: opacity 0.5s ease-in, background 0.5s ease-in;
  opacity: 0;
  will-change: opacity, background;
  background: var(--b);
  padding: 0.25em var(--pad);
  opacity: 1;
}

input[type="range"]::-moz-range-track {
  background: linear-gradient(90deg, var(--tint) -25%, var(--tint2) 125%);
  display: block;
  width: calc(100% + var(--pad) * 2);
  height: calc(1em + var(--pad) * 2);
  border-radius: 1em;
  margin-inline: calc(var(--pad) * -1);
  -moz-transition: opacity 0.5s ease-in, background 0.5s ease-in;
  transition: opacity 0.5s ease-in, background 0.5s ease-in;
  opacity: 0;
  will-change: opacity, background;
}

input[type="range"]::-ms-track {
  background: linear-gradient(90deg, var(--tint) -25%, var(--tint2) 125%);
  display: block;
  width: calc(100% + var(--pad) * 2);
  height: calc(1em + var(--pad) * 2);
  border-radius: 1em;
  margin-inline: calc(var(--pad) * -1);
  -ms-transition: opacity 0.5s ease-in, background 0.5s ease-in;
  transition: opacity 0.5s ease-in, background 0.5s ease-in;
  opacity: 0;
  will-change: opacity, background;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 1em;
  height: 1em;
  border: none;
  outline: none;
  background: var(--fg);
  border-radius: 1em;
  transform: translate3d(0, 0, 0);
  -webkit-transition: 0.5s all var(--spring);
  transition: 0.5s all var(--spring);
  box-shadow: var(--thumb-shadow);
}
input[type="range"]:hover::-webkit-slider-thumb {
  scale: 1.33;
  -webkit-transition: 0.2s all ease;
  transition: 0.2s all ease;
}
input[type="range"]:focus::-webkit-slider-thumb {
  scale: 2;
  -webkit-transition: 0.33s all var(--spring);
  transition: 0.33s all var(--spring);
  box-shadow: var(--thumb-shadow-on);
}

input[type="range"]::-moz-range-thumb {
  -moz-appearance: none;
  appearance: none;
  width: 1em;
  height: 1em;
  border: none;
  outline: none;
  background: var(--fg);
  border-radius: 1em;
  transform: translate3d(0, 0, 0);
  -moz-transition: 0.5s all var(--spring);
  transition: 0.5s all var(--spring);
  box-shadow: var(--thumb-shadow);
}
input[type="range"]:hover::-moz-range-thumb {
  scale: 1.33;
  -moz-transition: 0.2s all ease;
  transition: 0.2s all ease;
}
input[type="range"]:focus::-moz-range-thumb {
  scale: 2;
  -moz-transition: 0.33s all var(--spring);
  transition: 0.33s all var(--spring);
  box-shadow: var(--thumb-shadow-on);
}


input[type="range"]::-ms-thumb {
  appearance: none;
  width: 1em;
  height: 1em;
  border: none;
  outline: none;
  background: var(--fg);
  border-radius: 1em;
  transform: translate3d(0, 0, 0);
  -ms-transition: 0.5s all var(--spring);
  transition: 0.5s all var(--spring);
  box-shadow: var(--thumb-shadow);
}
input[type="range"]:hover::-ms-thumb {
  scale: 1.33;
  -ms-transition: 0.2s all ease;
  transition: 0.2s all ease;
}
input[type="range"]:focus::-ms-thumb {
  scale: 2;
  -ms-transition: 0.33s all var(--spring);
  transition: 0.33s all var(--spring);
  box-shadow: var(--thumb-shadow-on);
}

input[type="range"]:focus::-webkit-slider-runnable-track {
  -webkit-transition: background 0.5s ease-out;
  transition: background 0.5s ease-out;
  background: linear-gradient(90deg, var(--tint) -25%, var(--tint2) 125%);
  opacity: 1;
}

input[type="range"]:focus::-moz-range-track {
  -moz-transition: opacity 0.5s ease-out;
  transition: opacity 0.5s ease-out;
  opacity: 1;
}

input[type="range"]:focus::-ms-track {
  -ms-transition: opacity 0.5s ease-out;
  transition: opacity 0.5s ease-out;
  opacity: 1;
}

input[type="color"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  max-width: 4em;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 2.5em;
  padding: 5px;
  border-radius: 10em;
}

input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: inherit;
  display: block;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
  border-radius: inherit;
}

input[type="color"]::-moz-color-swatch {
  border: none;
  border-radius: inherit;
  display: block;
}

input[type="color"]::-moz-color-swatch-wrapper {
  padding: 0;
  border-radius: inherit;
}

.buttons {
  display: flex;
  justify-content: flex-end;
  gap: 0.5em;
}

button {
  display: flex;
  align-items: center;
  gap: 0.5em;
  background: hsl(var(--h), var(--s), 90%);
  text-transform: uppercase;
  padding-inline: 2em;
  box-shadow: inset 0 0 0 1px transparent;
  transition: all 0.3s ease;
}
.dark button {
  background: hsl(var(--h), var(--s), 15%);
}
button:hover {
  opacity: 0.8;
  box-shadow: inset 0 0 0 1px var(--fg);
}
button[type="submit"] {
  --svg: var(--bg);
  background: var(--fg);
  color: var(--bg);
  font-weight: 600;
}

button svg {
  fill: var(--svg);
  height: 1em;
  width: auto;
}

.group {
  display: grid;
  grid-template-columns: repeat(var(--group-cols, 1), auto 1fr);
  align-items: center;
  margin-block: 0;
  width: -webkit-max-content;
  width: -moz-max-content;
  width: max-content; 
}

.group.flex {
  display: flex;
  align-items: center; 
}
  
.group:has(.toggle.dual) {
  grid-template-columns: -webkit-max-content auto -webkit-max-content;
  grid-template-columns: max-content auto max-content;
}
  
.group input + label,
.group:has( input[type="checkbox"].toggle.dual ) label {
  display: inline-flex;
  gap: 0.5em;
  padding: 0.5em 0.66em;
  margin-block: 0;
  -webkit-margin-end: 2em;
          margin-inline-end: 2em;
}
  
.group:has( input[type="checkbox"].toggle.dual ) label {
  margin-inline: 0;
}

@container (width > 300px) { 
  .group {
    --group-cols: 2;
  }
}
@container (width > 600px) { 
  .group {
    --group-cols: 4;
  }
}


/* general style */

a {
  color: var(--link);
  text-decoration: none;
  font-weight: 450;
  transition: all 0.3s ease;
}
a:hover,
a:focus,
a:active {
  color: var(--linkh);
}

h1,h2 {
    font-family: 'Amaranth', sans-serif;
    text-shadow: 0 0.5px 1.5px color-mix(in oklch, var(--fg), var(--bg) 66%);
}
h2 {
    font-weight: 200;
    font-style: italic;
    color: color-mix(in oklch, var(--fg) 60%, var(--bg));
}
h1 span {
    font-style: italic;
    color: color-mix(in oklch, var(--fg) 60%, var(--bg));
}
code, pre {
    font-family: 'M PLUS 1 Code', monospace;
}
code {
    display: inline-block;
    padding-inline: 0.4em;
    border-radius: 0.2em;
    background: light-dark( hsl( from var(--fg) h 25% 85% / 50%), hsl( from var(--fg) h 25% 15% / 50%) );
    color: color-mix( in oklch, var(--fg), hsl( from var(--tint) h 100% 50%) 50% );
    font-size: 0.875em;
}
hr {
  background: none;
  border: none;
  border-bottom: 1px solid var(--bor);
  margin-block: 1em;
}



/* https://gist.github.com/ffoodd/000b59f431e3e64e4ce1a24d5bb36034 */

.sr-only,
.sr-only-focusable:not(:focus, :focus-within) {
	border: 0 !important;
	-webkit-clip-path: inset(50%) !important;
	        clip-path: inset(50%) !important; /* 2 */
	height: 1px !important;
	margin: -1px !important;
	overflow: hidden !important;
	padding: 0 !important;
	width: 1px !important;
	white-space: nowrap !important; /* 3 */
}

.sr-only:not(caption),
.sr-only-focusable:not(caption):not(:focus, :focus-within) {
	position: absolute !important;
}

.sr-only *,
.sr-only-focusable:not(:focus, :focus-within) * {
	overflow: hidden !important;
}




/* social */

.social-icon {
  stroke-width: 1.25;
  stroke: currentColor;
  fill: transparent;
  background: transparent;
  stroke-linecap: round;
  stroke-linejoin: round;
  position: fixed;
  bottom: 10px;
  right: 10px;
  width: 24px;
  height: 24px;
  z-index: 10;
  -webkit-animation: iconsLoad 10s ease both 5s;
          animation: iconsLoad 10s ease both 5s;
}
.social-icon path {
  fill: none;
}
.social-icon.twitter {
  right: 40px;
  -webkit-animation-delay: 4s;
          animation-delay: 4s;
}
.social-icon.codepen {
  bottom: 10px;
  right: 80px;
  width: -webkit-max-content;
  width: -moz-max-content;
  width: max-content;
  -webkit-animation-delay: 3s;
          animation-delay: 3s;
}
@-webkit-keyframes iconsLoad {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0px);
  }
}
@keyframes iconsLoad {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0px);
  }
}



/* theme-toggle */

:root {
  color-scheme: light dark;
}

:root:has(body.themed):not(:has(#theme-toggle:checked)) {
    color-scheme: light;
}
:root:has(body.themed):has(#theme-toggle:checked) {
    color-scheme: dark;
}

.theme-toggle {
    position: fixed;
    top: 1em;
    left: 0;
    transition: scale 0.2s var(--cubic), opacity 0.2s var(--cubic);
    &:not(:hover, :focus-within) {
        scale: 0.66;
        opacity: 0.5;
    }
  & > input {
    margin: 0.2em;
  }
}

:root {
    --bg: #f7f8fa;
    --bg2: #ebf2fa;
    --fg: #2f5380;
    --link: hsl(var(--canvas), 95%, 60%);
    --linkh: hsl(150, 90%, 50%);
    --cubic: cubic-bezier(0.65, 0, 0.35, 1);
    --cubic-in: cubic-bezier(0.32, 0, 0.67, 0);
    --cubic-out: cubic-bezier(0.33, 1, 0.68, 1);
}

button.iridescent {
    font-size: clamp(32px, 6vw, 64px);
    font-family: "Amaranth", sans-serif;
    text-transform: none;
    color: #818e9e;
    min-width: 8em;
    height: 3em;
    line-height: 1;
    display: inline-grid;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 0.5em 1.5em;
    outline: max(2px, calc(var(--brdr) * 0.75)) solid transparent;
    outline-offset: max(2px, var(--brdr));
    
    border-radius: 99vw;
    transition: all 0.33s var(--cubic-out);
    
    --brdr: 0.15em;
    border: max(2px, var(--brdr)) solid transparent;
    
    background: 
        linear-gradient( to bottom, 
            oklch(0.95 0.01 257), 
            oklch(0.92 0.0175 257 / 80%) 33%, 
            oklch(0.99 0.01 257 / 80%)) padding-box,
        linear-gradient( 165deg, 
            oklch(0.94 0.025 257 / 80%) 25%, 
            oklch(0.99 0.01 257 / 80%)) border-box;
    
    --inset-shadow:
        inset 0 0 0 0 oklch(1 0.02 257 / 0),
        inset -0.35em -0.35em 0.25em -0.25em oklch(0.99 0.02 257),
        inset -0.33em -1em 0.75em -0.75em oklch(0.99 0.01 257);
    
    --outer-shadow: 
        oklch(0.35 0.1 257 / 0.12) 0px max(4px, 0.3em) 0.3em 0px, 
        oklch(0.35 0.1 257 / 0.12) 0px max(2px, 0.18em) 0.18em 0px, 
        oklch(0.35 0.1 257 / 0.1) 0px max(1px, 0.05em) max(2px, 0.05em) 0px;
    
    box-shadow: var(--inset-shadow), var(--outer-shadow);

    &:has(.drop-shadow) {
        box-shadow: var(--inset-shadow);
    }
    
    &::before,
    &::after,
    & .drop-shadow,
    & .drop-shadow::after,
    & .drop-shadow::before {
        content: "";
        position: absolute;
        inset: min(-2px, calc(var(--brdr) * -1));
        border-radius: inherit;
        pointer-events: none;
        transition: all 0.6s var(--cubic-in);
    }
    
    &:hover,
    &.shine {
        &::before,
        &::after,
        & .drop-shadow,
        & .drop-shadow::after,
        & .drop-shadow::before {
            transition-duration: 0.3s;
            transition-timing-function: var(--cubic-out);
        }
    }
    
    &::after {
        opacity: 0.3;
        background: transparent;
        box-shadow: 
            inset 0 -0.3em 2px 1px oklch(0.99 0.01 257),
            inset 0 -0.3em 0.25em oklch(0.99 0.01 257),
            inset 0 -0.3em 0.5em oklch(0.99 0.01 257),
            inset 0 -0.3em 0.75em oklch(0.99 0.01 257),
            inset 0 -0.3em 1em oklch(0.99 0.01 257);
        mix-blend-mode: lighten;
        z-index: 2;
    }
    
    & .drop-shadow {
        box-shadow: var(--outer-shadow);
        z-index: -2;
    }
    
    &::before,
    & .drop-shadow::after {
        opacity: 0;
        translate: 1.1em 0em;
        scale: 0.8;
        background: linear-gradient(
            98deg in oklab,
            oklch(0.8 0.1348 355.91) -5%,
            oklch(0.8 0.2 280) ,
            oklch(0.98 0.22 200) 160%
        );
        -webkit-mask: linear-gradient(166deg, transparent 60%, black);
                mask: linear-gradient(166deg, transparent 60%, black);
        filter:  blur(5px) brightness(1) contrast(1.3);
        box-shadow: 
            inset 0 max(-2px, calc(var(--brdr) * -1)) 0 min(2px, var(--brdr)) oklch(0.99 0.01 257 / 20%),
            inset 0 -0.25em 0.25em 0.125em oklch(0.99 0.01 257 / 40%);
        z-index: 3;
    }
    
    & .drop-shadow::after {
        opacity: 0;
        translate: -0.25em 1.2em;
        filter:  blur(8px) brightness(1.2) contrast(1.05);
        mix-blend-mode: lighten;
        background-position: center;
        
        -webkit-mask: radial-gradient(
            closest-side, 
            hsl(0, 0%, 100%) 0%,
            hsla(0, 0%, 100%, 0.987) 8.1%,
            hsla(0, 0%, 100%, 0.951) 15.5%,
            hsla(0, 0%, 100%, 0.896) 22.5%,
            hsla(0, 0%, 100%, 0.825) 29%,
            hsla(0, 0%, 100%, 0.741) 35.3%,
            hsla(0, 0%, 100%, 0.648) 41.2%,
            hsla(0, 0%, 100%, 0.55) 47.1%,
            hsla(0, 0%, 100%, 0.45) 52.9%,
            hsla(0, 0%, 100%, 0.352) 58.8%,
            hsla(0, 0%, 100%, 0.259) 64.7%,
            hsla(0, 0%, 100%, 0.175) 71%,
            hsla(0, 0%, 100%, 0.104) 77.5%,
            hsla(0, 0%, 100%, 0.049) 84.5%,
            hsla(0, 0%, 100%, 0.013) 91.9%,
            hsla(0, 0%, 100%, 0) 100%
        );
        
                mask: radial-gradient(
            closest-side, 
            hsl(0, 0%, 100%) 0%,
            hsla(0, 0%, 100%, 0.987) 8.1%,
            hsla(0, 0%, 100%, 0.951) 15.5%,
            hsla(0, 0%, 100%, 0.896) 22.5%,
            hsla(0, 0%, 100%, 0.825) 29%,
            hsla(0, 0%, 100%, 0.741) 35.3%,
            hsla(0, 0%, 100%, 0.648) 41.2%,
            hsla(0, 0%, 100%, 0.55) 47.1%,
            hsla(0, 0%, 100%, 0.45) 52.9%,
            hsla(0, 0%, 100%, 0.352) 58.8%,
            hsla(0, 0%, 100%, 0.259) 64.7%,
            hsla(0, 0%, 100%, 0.175) 71%,
            hsla(0, 0%, 100%, 0.104) 77.5%,
            hsla(0, 0%, 100%, 0.049) 84.5%,
            hsla(0, 0%, 100%, 0.013) 91.9%,
            hsla(0, 0%, 100%, 0) 100%
        );
        z-index: -2;
    }
    
    & .drop-shadow::before {
        opacity: 1;
        translate: 1.2em 1.1em;
        scale: 1.5 0.8;
        background: red;
        background: oklch(0.98 0.03 257);
        
        -webkit-mask: radial-gradient(
            closest-side, 
            hsl(0, 0%, 100%) 0%,
            hsla(0, 0%, 100%, 0.987) 8.1%,
            hsla(0, 0%, 100%, 0.951) 15.5%,
            hsla(0, 0%, 100%, 0.896) 22.5%,
            hsla(0, 0%, 100%, 0.825) 29%,
            hsla(0, 0%, 100%, 0.741) 35.3%,
            hsla(0, 0%, 100%, 0.648) 41.2%,
            hsla(0, 0%, 100%, 0.55) 47.1%,
            hsla(0, 0%, 100%, 0.45) 52.9%,
            hsla(0, 0%, 100%, 0.352) 58.8%,
            hsla(0, 0%, 100%, 0.259) 64.7%,
            hsla(0, 0%, 100%, 0.175) 71%,
            hsla(0, 0%, 100%, 0.104) 77.5%,
            hsla(0, 0%, 100%, 0.049) 84.5%,
            hsla(0, 0%, 100%, 0.013) 91.9%,
            hsla(0, 0%, 100%, 0) 100%
        );
        
                mask: radial-gradient(
            closest-side, 
            hsl(0, 0%, 100%) 0%,
            hsla(0, 0%, 100%, 0.987) 8.1%,
            hsla(0, 0%, 100%, 0.951) 15.5%,
            hsla(0, 0%, 100%, 0.896) 22.5%,
            hsla(0, 0%, 100%, 0.825) 29%,
            hsla(0, 0%, 100%, 0.741) 35.3%,
            hsla(0, 0%, 100%, 0.648) 41.2%,
            hsla(0, 0%, 100%, 0.55) 47.1%,
            hsla(0, 0%, 100%, 0.45) 52.9%,
            hsla(0, 0%, 100%, 0.352) 58.8%,
            hsla(0, 0%, 100%, 0.259) 64.7%,
            hsla(0, 0%, 100%, 0.175) 71%,
            hsla(0, 0%, 100%, 0.104) 77.5%,
            hsla(0, 0%, 100%, 0.049) 84.5%,
            hsla(0, 0%, 100%, 0.013) 91.9%,
            hsla(0, 0%, 100%, 0) 100%
        );
        z-index: -1;
    }
    
    &:hover,
    &.shine,
    &:focus-visible {
        opacity: 1;
        color: #3c5a80;
        box-shadow: var(--inset-shadow), var(--outer-shadow);
        &:has(.drop-shadow) {
            box-shadow: var(--inset-shadow);
        }
        
        &::after,
        &::before,
        & .drop-shadow::after {
            opacity: 0.8;
        }
        &::before {
            opacity: 0.6;
            translate: 0em;
            scale: 1;
        }
        & .drop-shadow::after {
            opacity: 0.65;
            translate: 0.33em 1.2em;
            scale: 1.3 0.66;
        }
    }
    
    &:focus-visible {
        border-color: oklch(0.99 0.01 257 / 70%);
        outline-color: oklch(0.3 0.12 257 / 50%);
    }
    
    &:active {
        transition: all 0.1s var(--cubic-out);
        translate: 0 max(1px, 0.05em);
        
        border-color: oklch(0.99 0.01 257 / 70%);
        
        --outer-shadow: 
            oklch(0.35 0.1 257 / 0.12) 0px max(2px, 0.15em) 0.15em 0px, 
            oklch(0.35 0.1 257 / 0.12) 0px max(1px, 0.09em) 0.09em 0px, 
            oklch(0.35 0.1 257 / 0.1) 0px max(0.5px, 0.025em) max(1px, 0.025em) 0px;
        
        --inset-shadow:
            inset 0 0.25em 0.66em 0em oklch(1 0.02 257 / 0.66),
            inset -0.35em -0.35em 0.25em -0.25em oklch(0.99 0.02 257),
            inset -0.33em -1em 0.75em -0.75em oklch(0.99 0.01 257);
    }
    
    &:active::after {
        transition: all 0.1s var(--cubic-out);
        opacity: 1;
    }
}

body, html, #app {
    display: grid;
    min-height: 100%;
    place-content: center;
}
body {
    background: 
        radial-gradient(hsl(220 10% 50% / 0.2) 1px, transparent 0px),
        linear-gradient(160deg, var(--bg), var(--bg2));
    background-repeat: repeat, no-repeat;
    background-size: 30px 30px, cover;
}

#app + aside {
    text-align: center;
    margin-top: 4em;
    padding: 1em;
    -webkit-backdrop-filter: blur( 2px );
            backdrop-filter: blur( 2px );
    text-wrap: pretty;
}

.arrow {
  position: absolute;
  left: 54%;
  top: 50%;
  fill: white;
  color: white;
  width: 40px;
  height: 40px;
  stroke: black;
  stroke-width: 20;
  translate: 20px 20px;
  filter: invert(1) drop-shadow(0 2px 3px rgba(0,0,0,0.25)) drop-shadow(0 4px 8px rgba(0,0,0,0.15));
  -webkit-animation: arrow 4s ease both;
          animation: arrow 4s ease both;
  z-index: 99;
}

@-webkit-keyframes arrow {
  0%, 10% {
    opacity: 0;
    translate: 130px 50px;
  }
  33%, 75% {
    translate: 32px -23px; 
    opacity: 1;
  }
  100% {
    translate: 300px -190px;
    opacity: 0;
  }
}

@keyframes arrow {
  0%, 10% {
    opacity: 0;
    translate: 130px 50px;
  }
  33%, 75% {
    translate: 32px -23px; 
    opacity: 1;
  }
  100% {
    translate: 300px -190px;
    opacity: 0;
  }
}
const btn = document.querySelector('.iridescent');
setTimeout(() => {
  btn.classList.add('shine');
}, 500);
setTimeout(() => {
  btn.classList.remove('shine');
}, 3000);
A modern web page layout with smooth scrolling, featuring a hero image, a gallery with clip-path reveals, and a footer with a wave-like SVG animation.

Lenis Smooth Scroll & GSAP Page

This is a Lenis Smooth Scroll & GSAP Page. It transforms a standard one-page website into a high-end, cinematic scrolling experience. Its function is to provide an exceptionally fluid and responsive interface by replacing native “jumpy” browser scrolling with the physics-based smoothness of Lenis, while using GSAP’s ScrollTrigger to orchestrate a series of staggered animations that reveal content as the user navigates down the page. (Requires: GSAP, Lenis, ScrollTrigger)

Technologies:
HTML CSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 80+ Edge Edge 80+ Firefox Firefox 75+ Safari Safari 13.1+
Features:
Lenis Smooth Scroll GSAP ScrollTrigger Clip-path Reveals Staggered SVG Animation
License: MIT
A cinematic web page with smooth scrolling transitions, including a film-roll header effect, a video player that expands and blurs, and a footer reveal.

Lenis Smooth Scroll Cinematic Experience

This is a Lenis Smooth Scroll Cinematic Experience. It transforms a standard single-page portfolio or narrative website into an immersive, high-end digital journey. Its primary function is to replace jarring browser scrolling with the fluid, physics-based motion of Lenis, while using GSAP’s ScrollTrigger plugin to orchestrate a complex sequence of cinematic animations, including a “film roll” header, an expanding video player, and a dramatic footer reveal. (Requires: Lenis, GSAP, ScrollTrigger)

Technologies:
HTML CSS JavaScript
Difficulty: Intermediate
Browser Support (as of Mar 2026):
Chrome Chrome 80+ Edge Edge 80+ Firefox Firefox 75+ Safari Safari 14.1+
Features:
Lenis Smooth Scroll GSAP ScrollTrigger Film Roll Effect Clipboard API Integration
License: MIT
A vertical timeline with alternating content and image blocks, linked by a central glowing lime-colored bar

Responsive Two-Column Timeline

This is a Responsive Two-Column Timeline. It transforms list-based historical data into a structured, alternating visual path. Its function is to allow users to navigate chronological content with ease, using a centralized vertical bar to guide the eye while images and text blocks oscillate between left and right columns.

Technologies:
HTML SCSS
Difficulty: Beginner
Browser Support (as of Mar 2026):
Chrome Chrome 80+ Edge Edge 80+ Firefox Firefox 75+ Safari Safari 13+
Features:
CSS Grid Dynamic Background Markers Alternating Layout
Code by: Ana Tudor Ana Tudor
License: MIT
Photorealistic 3D model of a MacBook Pro floating on a gradient background, with the lid animating from closed to open, revealing a lit screen

3D Interactive MacBook Model

This is a 3D Interactive MacBook Model. It utilizes Three.js to load, texture, and animate a high-fidelity .glb model of a laptop. Its function is to create a premium, cinematic product showcase, replacing static hero images with a fully interactive WebGL scene that animates through a complex opening and booting-up sequence. (Requires: Three.js, GSAP, lil-gui)

Technologies:
HTML CSS JavaScript
Difficulty: Advanced
Browser Support (as of Mar 2026):
Chrome Chrome 60+ Edge Edge 79+ Firefox Firefox 55+ Safari Safari 11+
Features:
GLTF Loading GSAP Timelines Orbit Controls Webcam Integration
License: MIT
A video game character select screen with a large image of Ryu and a row of selectable character portraits at the bottom

CSS :has() Character Select Screen

This is a CSS :has() Character Select Screen. It replicates the classic user interface of a fighting game’s selection menu, using modern CSS to handle all state logic. Its function is to demonstrate how the :has() pseudo-class can completely replace JavaScript for managing visibility in a selection-based UI, triggering changes in the main content area based on the state of a radio button group. (Requires: Vue)

Technologies:
HTML CSS JavaScript
Difficulty: Beginner
Browser Support (as of Mar 2026):
Chrome Chrome 105+ Edge Edge 105+ Firefox Firefox 121+ Safari Safari 15.4+
Features:
CSS State Management No JavaScript Logic Responsive Grid
Code by: Sicontis Sicontis
License: MIT
A settings panel UI featuring a notification icon and text that dynamically change from 'Off' to 'On' when the adjacent toggle switch is activated

CSS :has() Notification Toggle

This is a CSS :has() Notification Toggle. It provides a fully functional, state-aware UI switch for settings panels without a single line of JavaScript. Its function is to allow the user to toggle a binary state (notifications on/off) and have the entire UI — including icons, labels, and descriptive text — update instantly based purely on the state of a hidden checkbox.

Technologies:
HTML CSS
Difficulty: Beginner
Browser Support (as of Mar 2026):
Chrome Chrome 105+ Edge Edge 105+ Firefox Firefox 121+ Safari Safari 15.4+
Features:
CSS :has() Checkbox Hack No JavaScript Stateful UI
Code by: Paulo Nunes Paulo Nunes
License: MIT