| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>CSS Containment Test: Layout containment inside a fit-content element</title> |
| <link rel="help" href="https://crbug.com/1268449"> |
| <link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-layout"> |
| <link rel="match" href="../reference/ref-filled-green-100px-square.xht"> |
| <meta name=assert |
| content="Layout containment inside a fit-content element should update size when the content is changed"> |
| <style> |
| #contain-parent { |
| width: fit-content; |
| } |
| |
| #contain-layout { |
| contain: layout; |
| background: green; |
| } |
| |
| #content { |
| width: 50px; |
| height: 100px; |
| } |
| </style> |
| <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> |
| <div id="contain-parent"> |
| <div id="contain-layout"> |
| <div id="content"></div> |
| </div> |
| </div> |
| |
| <script> |
| window.requestAnimationFrame(() => { |
| document.body.offsetTop; |
| document.getElementById('content').style.width = '100px'; |
| document.body.offsetTop; |
| }); |
| </script> |