Pure CSS Tabs With Details, Grid, and Subgrid | CSS-Tricks
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Pure CSS Tabs With Details, Grid, and Subgrid | CSS-Tricks
"Making a tab interface with CSS is a never-ending topic in the world of modern web development. Are they possible? If yes, could they be accessible? I wrote how to build them the first time nine long years ago, and how to integrate accessible practices into them. Although my solution then could possibly still be applied today, I've landed on a more modern approach to CSS tabs using the element in combination with CSS Grid and Subgrid."
"Next, the CSS Let's set up the grid for our wrapper element using - you guessed it - CSS Grid. Basically what we're making is a three-column grid, one column for each tab (or .item), with a bit of spacing between them. We'll also set up two rows in the .grid, one that's sized to the content and one that maintains its proportion with the available space. The first row will hold our tabs and the second row is reserved for the displaying the active tab panel."
Use a series of <details> elements inside a parent .grid wrapper to represent tabs and panels, with each <details> as an .item and each summary as a .subitem. Provide one <details> open by default to indicate an active tab. Apply CSS Grid to the .grid wrapper to create a three-column layout with spacing between columns and two rows: the first row for tab controls and the second row for the active panel. Use Subgrid where needed to propagate column alignment and maintain consistent sizing across tab items. This approach supports modern CSS layout and aims for accessible, CSS-driven tab behavior.
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