114 CSS Pseudo-Element Examples

The Slingshot Elastic Stretch Toggle is an experimental UI switch that utilizes exaggerated spatial movement to signal state changes. It replaces the standard sliding thumb with a “dual-handle” system that appears to shoot across the viewport using a high-velocity slingshot effect. Its function is to provide an high-energy alternative to traditional toggles, making a simple boolean selection feel like a physical, kinetic event.

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.

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.

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.

This is a Frameless Blurred Background Image Effect. It uses an innovative CSS technique to generate a soft, atmospheric background for an image by duplicating, stretching, and blurring the image itself. The function is to create a polished, “pro” look for profile pictures or product thumbnails without requiring image editing software or complex JavaScript canvas manipulations.

This is a Sliding Line Hamburger Menu Animation. It reinvents the standard three-bar toggle by using internal pseudo-element sliding instead of simple opacity changes. Its function is to provide a high-end, staggered interaction that signals navigation states with mechanical precision.

This is a Pure CSS Retro Arcade Machine. It constructs a highly detailed, nostalgic gaming cabinet entirely out of HTML nodes and CSS styling. Its function is to showcase the power of CSS as an illustrative medium, replacing static raster images or SVGs with resolution-independent, scalable code.

This is a Scroll-Animated Bootstrap Accordion Timeline. It structures sequential data into a central vertical axis, combining visual anchor points (images) with collapsible text modules (accordions). Its function is to compress dense historical or process-oriented information into a scannable format. Nodes remain hidden until scrolled into the viewport, forcing user focus on the active temporal step.

This Modern CSS Star Rating Component represents a major shift in UI development, moving complex logic from JavaScript to pure CSS. It utilizes the powerful :has() selector to track sibling states, allowing the UI to highlight stars both before and after the interaction point. The stars themselves are created using clip-path instead of bulky SVG icons, resulting in a lightweight, scalable, and highly performant rating system.

This Split Staggered Reveal Card creates a dramatic, cinematic effect suitable for portfolios or featured content sections. Upon interaction, the background image recedes while two semi-transparent overlays slide in to create a high-contrast backdrop. Simultaneously, the title and description animate in with a precise staggered delay - letters for the title and words for the paragraph - powered by CSS variables.

This Highlighter Link Hover Effect provides a sophisticated micro-interaction for inline text links, moving beyond the standard static underline. By default, the link is covered by a soft, semi-transparent background fill; upon hovering, this “highlighter” block collapses into a thin underline while a directional arrow slides in from the right.

This Pure CSS ASCII File Tree brings the nostalgia of command-line directory structures to the web without typing a single pipe character manually. By cleverly utilizing CSS pseudo-elements (::before), it automatically draws the connecting lines (│, ├, └) for nested lists. It’s perfect for technical documentation, sitemaps, or retro-themed interfaces.

A pure CSS bicycle illustration constructed from geometric primitives using absolute positioning and vmin units for responsiveness. conic-gradient simulates wheel spokes, transform: skewX shapes the frame, and inset box-shadow adds depth, while pseudo-elements efficiently duplicate components like wheels.

A pure CSS character illustration of Dipper Pines, constructed from geometric primitives using absolute positioning and vmin units for responsiveness. The design leverages border-radius, transform, clip-path masking, and pseudo-elements to shape detailed features like the signature pine tree hat and hair, all styled with CSS variables and a custom web font.

A pure CSS cartoon illustration of a giraffe constructed from geometric primitives using absolute positioning. It leverages box-shadow for efficient pattern repetition (spots, clouds), clip-path for complex shapes like the mane, and CSS variables for a consistent pastel color palette.

A stylish, detailed vector-style portrait with depth and shadows, fully implemented using pure CSS gradients and clipping paths.

An elegant, modern list of track properties featuring custom graphic icons and smooth micro-interactions like padding shifts and color changes on hover.

A pure CSS tree diagram constructed from nested lists where pseudo-elements with borders form the connecting branches.

A collection of skeuomorphic buttons rendered entirely in CSS using complex gradient layering and calc()-driven geometry variables.

A rectangular button smoothly shrinks into a circle, the text fades out, and an upward-pointing arrow begins to cyclically rise within it.

A stylized nested to-do list employing advanced CSS pseudo-elements for custom markers and hover-based reveal logic for sub-tasks. JavaScript handles basic DOM manipulation for adding/removing items, while the dark UI features gradient borders and tooltip interactions.

An automated text annotation interface powered by Sass loops that visualizes semantic entity types using pseudo-elements and data attributes.

A smooth, rhythmic, and mesmerizing loader that looks complex but is implemented simply and efficiently.

A playful skeleton toggle switch animated purely with CSS. The skull handle slides via @keyframes triggered by the :checked state, while a complex hand assembly - constructed from gradients and box-shadows - slides in to “push” the toggle, creating a whimsical, interactive narrative without JavaScript.

An aesthetically pleasing, modern todo list featuring a vibrant gradient theme and an intuitive hierarchy creation function without complex control buttons.

A visually rich, animated section with cards that respond to hover (a colored border appears), creating a sense of interactivity and depth.

A playful button that shakes, reddens, and “curses” with increasing intensity upon each click (or hover for the secondary button), visualizing a gradual loss of composure.

A pure CSS pricing component that creates a dimensional ‘ribbon’ aesthetic solely through ::after pseudo-elements and clip-path geometry. The layout leverages CSS Custom Properties for distinct color themes and calc with negative margins to extend elements beyond the parent container, creating a folded paper effect without any JavaScript dependencies.

This demo creates a captivating liquid wave illusion using a single ::before pseudo-element inside multiple overflow: hidden containers. The fluid motion is the result of two simultaneous @keyframes animations - one controlling top and the other transform: rotateZ.

A skeuomorphic toggle design achieved by combining multiple linear-gradients for the body and box-shadow to create a volumetric effect. The smooth switching animation and “glow” in the active state are implemented via transition with a custom cubic-bezier curve.

A demonstration of step-by-step CSS transformation to create a cross effect: on :checked, the middle bar either gets opacity: 0 or scales down, while the top and bottom bars simultaneously rotate and translate.

An illustration of a cat created entirely in CSS, featuring interactive eyes that follow the cursor. JavaScript uses Math.atan2 to calculate the gaze angle, while all of the cat’s details - from the body to the whiskers - are implemented using pseudo-elements, box-shadow, and gradients.

A toggle switch implemented using a single <input type="checkbox"> and pseudo-elements. The “button” effect and its movement are achieved through complex, multi-layered box-shadow and the shifting of the ::before element.

A navigation menu with a neon glow and a complex hover effect. Icons and text use the CSS drop-shadow filter to create a glow effect, while the element’s color is controlled via an inline CSS variable --clr.

A full vertical slider with scroll-snap points. The navigation indicator is dynamically animated using the Intersection Observer API, which tracks when a slide enters the viewport.

A simple example of media control - a click event in vanilla JS is used both to control the HTML5 Audio API and to dynamically change the hue-rotate CSS filter.

An animated loader button using jQuery and SCSS, where progress is implemented via an @for loop that generates 101 linear-gradient rules - the state is changed through a custom attribute updated by JS.

A ticket layout where data (date, code) is generated on the fly with vanilla JS and inserted into the HTML - styling is done using CSS Grid, drop-shadow, and reusable SVG symbols via the <use> tag.

An example of creating CSS art using pseudo-elements and nth-of-type, enhanced with a JS easter egg - a mouseover spam detector to call the Vibration API.

Explore the technique of creating a three-line hamburger using a single <span> tag and two pseudo-elements, - which are then animated into an ‘X’ via a combination of CSS properties rotate(45deg) and translate.

The “Accordion/FAQ” functionality is implemented using pure JavaScript, which handles the click on the parent element and toggles the active class on the FAQ container. The visual highlight is the icon change via CSS display: none/block properties.

This interactive toggle switch demonstrates advanced animation work, where delayed class toggling in jQuery coordinates the knob movement and a stylish “color fill” text effect, created in CSS using overflow: hidden; and pseudo-elements.

An effective button group where the hover effect is created via inset box-shadow - and the click confirmation animation is implemented using transform and opacity on the ::after pseudo-element.

A simple search client for the YouTube API written in vanilla JS - data is fetched using fetch, and the results list is generated on the fly and injected into the DOM via innerHTML.

This Vue.js component showcases a clean implementation of the “Add to Cart” micro-interaction using reactive data and CSS animation. The main technical feature is the dynamic counter display via a CSS ::before pseudo-element and the count attribute, alongside the “Pop” effect upon update.

This custom radio button UI employs pure CSS @keyframes and transform properties to create a dynamic, liquid-like squash-and-stretch animation upon selection - the smooth UI transition is managed by complex jQuery state logic that precisely adds and removes animation classes.

An elegant Art Deco style card created purely with CSS/SCSS, utilizing a sophisticated technique with pseudo-elements to construct complex, multi-layered geometric borders and corners.

The entire scene is constructed from a combination of gradients (linear-gradient/radial-gradient) and precise element positioning using background-position.

This Cyberpunk-inspired card features a complex box-shadow offset and text-shadow for the core CRT aesthetic, paired with a dynamic :hover state that uses transform to instantly swap the terminal view for a social icon grid.

The main button has a semi-transparent background, the ::before pseudo-element contains the animated gradient, and ::after has a solid dark background that “cuts out” the inner part, leaving only the border visible.

Creating a complex decorative title where breaks in the border are elegantly implemented using CSS Grid and pseudo-elements. Padding sizes adapt dynamically thanks to a CSS variable calculated by a mixin.

A demonstration of “living” cards with two looped @keyframes animations - one for smooth background panning, and another for creating a shimmering gradient highlight.