Dive into the new era of CSS layout with a collection of CSS Anchor Positioning demos. This set showcases how to create dynamic and adaptive interfaces, allowing elements like tooltips and pop-up menus to automatically position themselves relative to an anchor element. These examples offer a modern, declarative solution to a long-standing web development challenge, eliminating the need for complex JavaScript calculations.
8 CSS Anchor Positioning Examples
CSS in 2024 (Experimental Features)
Using experimental CSS features to build an advanced UI component, showcasing CSS Anchoring to attach the tooltip to the slider and Scroll-Driven Animations to drive the slider’s value and color change.
See the Pen CSS in 2024 (Experimental Features).
Multiple Popovers with Anchor Positioning and @property
An advanced UI flow demonstrating the power of the native HTML Popover API for sequential dialogs, utilizing the toggle event and hidePopover() in Vanilla JS to create smooth, zero-dependency popover chaining with custom spring and fade CSS animations.
Progressive Anchor Pagination Component
A demo of a customizable pagination component, utilizing CSS Anchoring for seamless active state transitions and the View Transitions API for flicker-free theme switching.
See the Pen Progressive Anchor Pagination Component.
Animated Segmented Control in Plain CSS
A pristine Segmented Control built entirely with CSS, leveraging the power of experimental position-anchor and anchor-name to dynamically position and animate the active and hover indicator backgrounds without needing any JavaScript.
See the Pen Animated Segmented Control in Plain CSS.
CSS-Only Testimonials Using Scroll Snap
A powerful demonstration of building a full-featured carousel entirely with CSS, leveraging experimental ::scroll-button, ::scroll-marker, and position-anchor for navigation, indicators, and positional layout without any JavaScript.
See the Pen CSS-Only Testimonials Using Scroll Snap.
Action Bar - 'Follow the Leader' Dynamic Indicator
The key feature is the use of modern CSS positioning to create a dynamic indicator. User interaction, including hover and focus effects, is managed by JavaScript, which sets CSS variables for adaptive and visually appealing behavior.
See the Pen Action Bar - 'Follow the Leader' Dynamic Indicator.
Action Bar - 'Follow the Leader' Magnifying Lens
This is not just a demo, but a practical example of using CSS Anchor Positioning to create an interface. JavaScript efficiently toggles classes and attributes, while CSS handles all the positioning and animation logic, making the code clean, separated, and easy to maintain.
See the Pen Action Bar - 'Follow the Leader' Magnifying Lens.
Author Cards with Popover API
The demo uses the new CSS position-anchor with the popover attribute for native and flexible positioning of hover cards relative to text links. The code applies minimal Vanilla JS solely to invoke the native popover.showPopover() method, showcasing the shift to declarative UI.
