| <!doctype html> |
| <title>CSS Container Queries Test: @container with modal dialog child</title> |
| <link rel="help" href="https://drafts.csswg.org/css-contain-3/#container-queries"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="support/cq-testcommon.js"></script> |
| <style> |
| #container { |
| container-type: inline-size; |
| } |
| dialog { |
| color: red; |
| } |
| @container (max-width: 200px) { |
| dialog { color: green; } |
| } |
| @container (max-width: 100px) { |
| dialog { color: lime; } |
| } |
| </style> |
| <div id="container"> |
| <dialog id="dialog"></dialog> |
| </div> |
| <script> |
| setup(() => assert_implements_container_queries()); |
| |
| test(() => { |
| assert_equals(getComputedStyle(dialog).color, "rgb(255, 0, 0)"); |
| }, "#container initially wider than 200px"); |
| |
| test(() => { |
| container.style.width = "200px"; |
| assert_equals(getComputedStyle(dialog).color, "rgb(0, 128, 0)"); |
| }, "#container changed to 200px"); |
| |
| test(() => { |
| dialog.showModal(); |
| assert_equals(getComputedStyle(dialog).color, "rgb(0, 128, 0)"); |
| }, "Modal dialog still has parent as query container while in top layer"); |
| |
| test(() => { |
| container.style.width = "100px"; |
| assert_equals(getComputedStyle(dialog).color, "rgb(0, 255, 0)"); |
| }, "Container changes width while dialog is in top layer"); |
| </script> |