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HTML Can Do That

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Why This Matters

This article highlights how modern HTML features like popovers and dialogs are increasingly replacing JavaScript for dynamic web functionalities, simplifying development and enhancing accessibility. As browser support grows, these capabilities empower developers to create more interactive, accessible websites with less reliance on scripting, benefiting both industry innovation and user experience.

Key Takeaways

HTML Can Do That

HTML has been gobbling up swathes of what used to be JavaScript’s remit. This page lists a bunch of dynamic functionality that we can now achieve with just HTML.

Update 2026-08-20 : I originally built this page in one hour during HTML Day 2026 to write and celebrate HTML, but I’ve since made some edits to better express and highlight where the browser implementation of some of this stuff is severely lacking and/or completely fails to meet accessibility needs. So, by all means, try it out, but make it as accessible as you can!

popover Available since January 2025 Chrome 114+

Edge 114+

Firefox 125+

Opera 100+

Safari 17+

Chrome Android 114+

Firefox for Android 125+

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