10+ CSS light-dark() Examples

An interactive graph notebook paper pattern drawn entirely via stacked, layered CSS gradients. By combining major and minor linear grid lines, radial cross masks, and corner border offsets, it forms a fully customizable procedural background. It utilizes CSS @property Houdini variables to smoothly transition gap sizing updates, alongside dynamic theme and color hue tuning.

An advanced styling demonstration showing how to convert native <progress> elements into gorgeous glassmorphic ‘gel’ meters. Using native webkit and gecko pseudo-elements combined with oklch gradients, radial lighting masks, and @property Houdini variables, it builds high-performance indeterminate loading animations and responsive color themes with completely clean, semantic markup.

An interactive numeric range slider combining the Svelte Range Slider Pips library and the NumberFlow web component. Dragging the slider handle updates a floating badge indicator that slides horizontally, dynamically shifting its layout alignment to the left of the handle whenever it exceeds a 70% bar-width threshold. Includes a value-rolling automated intro animation. (Requires: svelte-range-slider-pips.js, number-flow.js)

An elegant numeric stepper component styled as a cohesive rounded pill, built with React and SCSS. By translating the internal value into relative percentages, the control buttons, background fill, and icon symbols slide smoothly during interactions. Includes split focus-ring indicators built with the CSS :has() selector and native light-dark() modern theme support. (Requires: react.js, react.dom.js, lucide.react.js)

This is an Animated 404 Face SVG. It uses CSS keyframes to transform the static numbers “404” into a reactive, smiling face. Its function is to provide an engaging, lightweight fallback state for broken links, softening user frustration through characterful micro-interactions.

This is a Minimalist Radial Dot Clock. It visualizes time through three concentric rings of geometric dots (hours, minutes, seconds) rather than traditional sweeping hands. Its function is to provide an ambient, modern alternative to standard analog or digital readouts, integrating seamlessly into high-end, futuristic interfaces.

This is a Sliding Theme Toggle Sidebar Menu. It integrates an interactive light/dark mode switch directly into a scrollable navigation panel. Its function is to provide centralized control over the application’s visual environment while maintaining immediate access to primary routing options.

This is an Interactive Board Game Prototype (“Wildfire”). It is a standalone, browser-based puzzle game where the player defends a “home” tile from procedurally generated “fire” tiles spreading across a 6x6 grid. It functions as an excellent study in grid mathematics, DOM-based state management, and turn-based game loops built entirely without canvas rendering or heavy game engine frameworks.

This is a Popping Form Controls component. It replaces standard browser checkboxes and radio buttons with highly stylized, interactive versions. Its function is to provide delightful micro-interactions by triggering a localized, physics-based confetti burst whenever an input is successfully checked.

This is an Auto-Generated Anchor Positioned TOC. It parses an article’s heading structure on the fly and constructs a sticky navigation menu. Its primary function is to replace heavy JavaScript scroll-spies (Intersection Observers) with native CSS Anchor Positioning and Scroll Targeting, moving an animated highlight alongside the active content section. (Requires: Tweakpane, GSAP)

This is a Scroll-Driven Circular Typographic Scramble. It utilizes experimental CSS animation-timeline to bind complex trigonometric and geometric transitions directly to the user’s scrollbar. Its function is to create a highly engaging, interactive hero section where chaotic, scattered letters perfectly align into a readable circular sentence as the user scrolls down.

This is an Animated SVG Alignment Toolbar. It replaces static UI states with physical motion. Its function is to provide immediate, tactile feedback for spatial arrangement settings (Top, Middle, Bottom) using native form inputs.

This is an Animated Ripple Dot Grid Loader. It utilizes pure CSS and complex keyframe choreography to render a highly synchronized loading state. Its function is to communicate background processing while maintaining visual engagement. The effect is continuous and self-contained, requiring zero user interaction.

This Vertical Ghost Text Hover Effect adds a spectral, sci-fi vibe to navigation menus without requiring extra HTML elements or pseudo-elements. By animating a stack of vertical text-shadows, the component creates a fading “echo” or “glitch” visual that expands outward when a user interacts with the link. It utilizes the modern light-dark() function to handle system theme preferences automatically.

This Synchronized Pure CSS Skeleton Loader pushes the boundaries of modern CSS by creating a unified “shimmer” effect that sweeps across multiple disparate elements simultaneously. Unlike standard skeleton loaders that animate each block independently, this implementation ensures a single, globally aligned gradient flow using advanced CSS math and Houdini properties.

A smooth and striking transition between light and dark themes, where the background fills with “blinds” from the center outwards (or vice versa, thanks to symmetric --i indices), while the button playfully rotates.

A practical example of the new light-dark() CSS function combined with native Web Components to create a flexible theme switcher. The entire system is controlled via data-attributes and includes an additional high-contrast mode for better accessibility.