A UI layout with multiple gray placeholder blocks being swept by a single, perfectly aligned white light beam moving across the entire screen.

Synchronized Pure CSS Skeleton Loader

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.

Technologies:
HTML CSS
Difficulty: Advanced
Browser Support (as of Jan 2026):
Chrome Chrome 111+ Edge Edge 111+ Safari Safari 16.4+ Firefox Firefox 128+
Features:
Global Synchronization Viewport-aware speed No-JS Math Light/Dark Mode
Code by: Simey Simey
License: MIT

CSS Fixed Backgrounds

A technically advanced parallax effect created without JavaScript. Two pseudo-elements with background-attachment: fixed and background-image: linear-gradient() are rotated 180 degrees, and the different scrolling speeds are achieved by applying transform: scale() to one of them.

See the Pen CSS Fixed Backgrounds.

Retro CSS Slideshow

A demonstration of how two independent, infinite @keyframes animations can be layered to create a complex visual sequence. One set of animation-delay manages the colored transitions, while the second controls the smooth appearance of the background images, creating a dynamic slideshow effect.

See the Pen Retro CSS Slideshow.

Scroll Flip-Book

A demonstration of one of the oldest and most reliable tricks for a parallax effect: the background-attachment: fixed property makes the section backgrounds stay in place relative to the viewport while the sections themselves scroll, creating an illusion of motion.

See the Pen Scroll Flip-Book.

Fixed Background Effect

A simple template that takes advantage of the background-attachment CSS property to create a fixed background effect.

See the Pen Fixed Background Effect.

Fixed Background Full Sections

A stunning CSS parallax scrolling effect achieved using the background-attachment: fixed property for full-screen sections. This high-performance snippet delivers a smooth, immersive UI/UX experience with zero JavaScript overhead.

See the Pen Fixed Background Full Sections.

Scroll Magic In Plain CSS

A clever pure CSS horizontal scroll implementation that utilizes rotate transforms to redirect mouse wheel interaction along the X-axis. This snippet showcases advanced frontend development techniques for building non-standard multi-column layouts and long-form content without relying on JavaScript.

See the Pen Scroll Magic In Plain CSS.

Fun with Unsplash.it

A modern pure CSS layout featuring fixed background sections created with the background-attachment: fixed property. This snippet utilizes Flexbox for precise content alignment, delivering a performance-optimized scrolling experience perfect for immersive frontend interfaces.

See the Pen Fun with Unsplash.it.

Scrolling Backgrounds In CSS

A smooth layer-reveal transition built with pure CSS using the background-attachment: fixed property. This snippet offers a high-performance solution for background swapping on scroll, perfect for landing pages that require elegant visual depth without JavaScript overhead.

See the Pen Scrolling Backgrounds In CSS.

Scrolling Fixed Background

A sophisticated CSS layout featuring a parallax scrolling effect and interactive button hover animations powered by pseudo-elements. This performant snippet leverages SCSS variables and responsive media queries, making it a perfect template for building immersive frontend sections and landing pages.

See the Pen Scrolling Fixed Background.

Background Attachment Fixed

A sleek layout featuring a fixed sidebar and a parallax scrolling effect achieved with pure CSS background-attachment: fixed. This snippet leverages SCSS loops for dynamic asset loading and CSS calc() for precise background alignment, offering a high-performance UI solution for modern storytelling and portfolios.

See the Pen Background Attachment Fixed.

Background Scroll Effect

A stunning pure CSS blending effect that leverages mix-blend-mode: difference and a fixed background for a dynamic visual experience. As the user scrolls, the body’s gradient interacts with the underlying image to create a striking color inversion.

See the Pen Background Scroll Effect.

Semi-Trans Overlay

Two sections sharing the same fixed background image. .page1 has it directly with background-attachment: fixed. .page2wrapper duplicates the same image with fixed attachment, while the inner .page2 uses a semi-transparent black overlay (opacity: 0.75) over white text. As you scroll, the image stays locked and the overlay slides over it — simple two-layer parallax.

See the Pen Semi-Trans Overlay.

background-attachment: fixed;

Five full-viewport quote sections, each with background-attachment: fixed — a portrait photo and a semi-transparent colored overlay. Each section pairs a famous quote (in English and Chinese translation) with the speaker’s portrait. Quotes from Musk, Buffett, Bezos, Sandberg, Jobs — each with a distinct overlay hue. Clean, typographic parallax layout.

See the Pen background-attachment: fixed;.

CSS Fixed Background Hero

A single hero section with background-attachment: fixed, a full-bleed photo at 16:9 aspect ratio (52.5% bottom padding), and a semi-transparent orange overlay via ::before. Title and subtitle centered with absolute positioning. Below, a two-column content section with an image. Clean, minimal demo of fixed-background hero combined with inline text.

See the Pen CSS Fixed Background Hero.

CSS-Only Fixed-Background Parallax Scroll

Four full-viewport slides, each with a fixed-parallax div using background-attachment: fixed and a semi-transparent dark overlay via ::before. A parallax-clip wrapper enables iOS compatibility via @supports — switching to position: fixed and translateZ(0). The container has overflow: hidden to clip the fixed backgrounds as they scroll out of view. Pure CSS, no JS.

Background-Attachment Fixed

Seven full-viewport sections alternating between full-bleed landscape photos (background-attachment: fixed) and white text blocks. The fixed images stay locked while content scrolls over them — classic parallax. Each photo section centers a large heading with text-shadow, each text block contains an image and paragraphs inside a semi-transparent white box. Clean, editorial layout.

See the Pen Background-Attachment Fixed.

Center Content, Fixed Background

Four text sections with a central parallax panel. The middle div uses background-attachment: fixed with a mountain photo, centered and covering the full area. Its content sits inside a semi-transparent dark green overlay (.TextBackground) with white text, padded and centered. The result is a simple parallax break between text blocks.

CSS Fixed Background Scrolling Effect

Five full-viewport sections, each with a different background image and background-attachment: fixed. As you scroll, each image stays locked in place while the next section slides over it — creating a clean, classic parallax reveal. Simple HTML structure, no JavaScript, no extra styling.

Grid with Fixed Background

Grid with Fixed Background

A 4-column CSS Grid dashboard of 12 health-metric cards, each with background-attachment: fixed. Two full-bleed background images are shared across cards via .bg-1 and .bg-2 classes — creating a fragmented parallax effect where each card reveals a different crop of the same photo as you scroll. Hover scales cards down to 0.98 with reduced opacity.

See the Pen Grid with Fixed Background.

Frequently Asked Questions

Why does background-attachment: fixed fail on iOS Safari and how do I work around it?

iOS Safari aggressively throttles background-attachment: fixed to preserve GPU memory, causing the background to snap or reset during scroll. Replace it with a position: sticky container holding the background image and use clip-path or transform on the foreground content for a consistent fixed-background illusion across all devices.

How does background-attachment: fixed affect INP and scroll performance?

Fixed backgrounds force the browser to repaint the background layer on every scroll frame, increasing main-thread paint time and INP metrics. Offload the effect by promoting the fixed layer with will-change: transform or switch to a compositor-driven scroll animation using animation-timeline: scroll().

How do I make fixed background effects accessible for users with motion sensitivity?

Wrap the fixed background in a prefers-reduced-motion media query that switches to a static background-attachment: scroll fallback. This prevents the parallax-like scroll jitter that can trigger vestibular discomfort while preserving the visual design.

What is the modern alternative to background-attachment: fixed for scroll-driven parallax in 2026?

Use CSS Scroll-Driven Animations with animation-timeline: scroll() on the root scroller. This keeps the parallax effect entirely on the compositor thread, avoids mobile compatibility issues, and allows precise control over the motion range using animation-range without JavaScript scroll listeners.

How do I provide a graceful fallback when background-attachment: fixed is not supported?

Rely on progressive enhancement: define a background-attachment: scroll (static) as the base, then layer background-attachment: fixed inside a @supports (background-attachment: fixed) rule. Browsers that lack support will safely ignore the fixed value and display the static background.