CSS accordions are an essential UI component for organizing and displaying content efficiently while keeping interfaces clean and user-friendly. Accordions allow sections of content to expand or collapse on user interaction, making them ideal for FAQs, menus, dashboards, and detailed information panels. Using modern CSS techniques like transitions, transforms, and pseudo-classes, designers can create smooth toggle effects, animated indicators, and stylish layouts without relying on JavaScript. Responsive CSS accordions ensure that content remains accessible and visually appealing across all devices, from desktops to mobile screens. With customizable colors, typography, spacing, and icons, CSS accordions can be adapted to match any website or app design. In this post, we’ll showcase 10 of the latest CSS accordion designs that are modern, interactive, and easy to implement, helping developers and designers create polished, professional, and engaging content sections for any project.
Pure CSS Accordion
A clean, pure‑CSS accordion built using the input[type="checkbox"] + label trick. You can open multiple panels at once because each accordion section is controlled by its own checkbox. The animation for expand/collapse is smooth, and the design stays minimal and accessible.
Features
Checkbox-based toggling Multiple panels can be open simultaneously Smooth height animation via max-height No JavaScript needed Simple, clean designCSS Only – Accordion Component
This is an FAQ-style accordion component using only HTML and CSS. It hides the content by default and reveals it when the hidden checkbox is checked. The little arrow rotates to indicate expanded / collapsed states, and the whole thing is styled in a soft, warm tone.
Features
Pure CSS (checkbox-based) Animated arrow icon on toggle Max‑height transition for content Accessible design (keyboard friendly) Lightweight, no external JSPure CSS Accordion Animation
An accordion where the content’s height can be dynamic — it doesn’t rely on a fixed max-height. It uses grid-template-rows and other modern CSS to animate the expansion smoothly, regardless of how tall the content is. Great for flexible layouts.
Features
Animates based on content height (no fixed max) Uses CSS Grid (grid-template-rows) Pure CSS, no JS Smooth transitions Responsive and flexible content areaAccessible CSS Accordion Menu
This is a radio‑based accordion built with accessibility in mind. Only one section can be opened at a time. Keyboard navigation (using Tab + Up/Down keys) is supported, making it more usable for people who rely on keyboard navigation.
Features
Radio inputs (only one open at a time) Keyboard navigable (accessible) Pure CSS solution Semantic HTML structure Clear visual open/close statePure CSS Horizontal Accordion
Instead of the usual vertical accordion, this design expands items horizontally. When you click on a header, the content area grows in width. It’s a fun twist on the accordion concept and works well for menus or image galleries.
Features
Horizontal expansion Checkbox or radio based toggle Smooth width transition Modern, clean styling No JavaScript requiredOne <details> Element Open at a Time
A progressive-enhancement accordion using the native <details> / <summary> elements. Only one <details> stays open at a time. Uses modern CSS for animation, but gracefully falls back to normal <details> behavior if CSS isn’t fully supported.
Features
Uses <details> and <summary> (semantic) Only one section open at a time CSS animation on open / close Graceful fallback Lightweight, minimal markupPure CSS Accordion with Animation via calc()
An accordion component that leverages CSS calc() for calculating dynamic content heights, allowing for smooth transitions even when content size varies. It’s a sophisticated pure CSS solution for complex accordion content.
Features
Uses calc() for dynamic height Smooth CSS-based animations Checkbox or radio control No JavaScript required Modern and flexible layoutCollapsing Accordion Pure CSS
This design uses CSS :target pseudo-class to collapse and expand content without any JavaScript. Clicking a header changes the URL hash, which triggers the content area to open or close. Visually clean and minimalist.
Features
Uses :target for toggle No JavaScript at all Smooth height transitions Clean, minimal styling Url hash reflects open itemPure CSS Accordion Menu
A simple accordion menu made purely with HTML and CSS. Each section expands/collapses on click, and the design is very straightforward – great for side menus or navigation.
Features
HTML + CSS only Click-to-toggle behavior Clean, lightweight UI Supports nested items Easy to customizePure CSS Accordion Menu
This accordion uses input[type="radio"] so only one section can be open at a time, and switches content accordingly. The design includes different form fields inside, showing how you can put complex content inside accordion panels.
Features
Radio-based toggling (only one open) Each section can contain form elements Pure CSS (no JS) Smooth max-height transition Accessible semanticsCSS accordions are a versatile solution for organizing web content, enhancing both usability and aesthetics. The 10 examples shared in this post illustrate a variety of modern accordion styles, including smooth toggle animations, icon indicators, gradient designs, and responsive layouts, suitable for FAQs, dashboards, and interactive content sections. By leveraging CSS transitions, transforms, and hover effects, developers can create accordions that feel dynamic and intuitive while keeping the interface minimal and user-friendly. Customizable options like colors, font styles, spacing, and icons allow these accordions to seamlessly integrate with any website or app design. Well-implemented CSS accordions improve content accessibility, reduce clutter, and enhance the overall user experience by allowing visitors to expand only the sections they are interested in. By mastering these techniques, developers can craft engaging, professional, and modern content structures that elevate the usability and visual appeal of their web projects.
