| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>CSS Grid Layout Test: Aligning grid items using 'auto' margins and relative sized columns</title> |
| <link rel="author" title="Javier Fernandez Garcia-Boente" href="mailto:jfernandez@igalia.com"> |
| <link rel="help" title="10.2 Aligning with auto margins" href="https://drafts.csswg.org/css-grid/#auto-margins"> |
| <meta name="assert" content="The 'left' and 'right' margins must be recomputed whenever the grid items's width changes."> |
| <style> |
| #grid { |
| display: grid; |
| position: relative; |
| background: grey; |
| grid-template-columns: 40% 60%; |
| grid-template-rows: 300px; |
| height: 400px; |
| width: 500px; |
| } |
| #grid div { |
| margin: 0px auto 0px auto; |
| } |
| #item1 { |
| background: green; |
| width: 50px; |
| height: 25px; |
| } |
| #item2 { |
| background: blue; |
| width: 100px; |
| height: 25px; |
| } |
| </style> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/check-layout-th.js"></script> |
| <div id="grid"> |
| <div id="item1"></div> |
| <div id="item2"></div> |
| </div> |
| <script> |
| setup({ explicit_done: true }); |
| document.fonts.ready.then(() => { |
| item1.setAttribute("data-offset-x", "75"); |
| item2.setAttribute("data-offset-x", "300"); |
| checkLayout('#grid', false); |
| |
| item1.style.width = "100px"; |
| |
| item1.setAttribute("data-offset-x", "50"); |
| item2.setAttribute("data-offset-x", "300"); |
| checkLayout('#grid', true); |
| }); |
| </script> |