<!DOCTYPE HTML> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <html><head> <meta charset="utf-8"> <title>CSS Grid Test: subgrid item using line names from outer grid</title> <link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com"> <link rel="help" href="https://drafts.csswg.org/css-grid-2"> <link rel="match" href="line-names-002-ref.html"> <style> html,body { color:black; background-color:white; font:24px/1 monospace; padding:0; margin:0; } .grid { display: grid; grid: auto / repeat(10, 10px) repeat(10, [a] 10px) [a]; padding: 20px 10px; } .subgrid { display: grid; grid: 50px / subgrid; grid-column: span 10; } x { background: grey; } </style> </head> <body> <div class="grid"> <div class="subgrid"> <x style="grid-column: span a / a 8"></x> </div> </div> </body> </html>