Una Kravets recently highlighted how new HTML and CSS features will help in implementing common UI patterns like customizable select menus, carousels, and hover cards in a more declarative fashion. This evolution will reduce the amount of custom JavaScript needed for such patterns and enhance built-in accessibility, improving both developer efficiency and user performance. Notably, the Popover API will facilitate easier customization of native controls, as traditional form control styling has often led developers to create their own versions, primarily due to styling constraints across different browsers.
The talk focuses on three particularly tricky UI patterns: customizable select menus, carousels, and hover cards.
Less custom JavaScript also benefits users in the shape of increased performance.
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