| <!DOCTYPE html> |
| <html lang=en class="reftest-wait"> |
| <meta charset="utf-8"> |
| <title>CSS Grid Layout Test: Absolute positioning changing containing block</title> |
| <link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com"> |
| <link rel="help" href="https://drafts.csswg.org/css-grid-1/#abspos" title="9. Absolute Positioning"> |
| <link rel="match" href="absolute-positioning-changing-containing-block-001-ref.html"> |
| <meta name="assert" content="This test checks that absolutelly positioned children of a grid are properly sized when the containing block switches between the grid container and a grid ancestor."> |
| <style> |
| .wrapper { |
| width: 100px; |
| height: 100px; |
| margin-bottom: 25px; |
| background: purple; |
| position: relative; |
| } |
| |
| .grid { |
| display: grid; |
| grid-template: 10px / 10px; |
| width: 50px; |
| height: 50px; |
| background: lightblue; |
| } |
| |
| .item { |
| width: 75%; |
| height: 75%; |
| background: orange; |
| position: absolute; |
| } |
| </style> |
| |
| <p>The test PASS if you see an orange box inside a purple box on top and a small orange box inside a light blue box inside a purple box on bottom.</p> |
| |
| <div class="wrapper"> |
| <div id="grid-as-cb" class="grid" style="position: relative;"> |
| <div class="item"></div> |
| </div> |
| </div> |
| <div class="wrapper"> |
| <div id="grid-as-parent" class="grid"> |
| <div class="item"></div> |
| </div> |
| </div> |
| |
| <script> |
| window.requestAnimationFrame(() => { |
| document.getElementById("grid-as-cb").style.position = "initial"; |
| document.getElementById("grid-as-parent").style.position = "relative"; |
| document.body.offsetLeft; |
| document.documentElement.classList.remove('reftest-wait'); |
| }); |
| </script> |
| |
| </html> |
