| <!doctype html> |
| <title>CSS Container Queries Test: Top layer element as a @container</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> |
| #parent { width: 100px; } |
| #dialog { |
| container-type: inline-size; |
| width: auto; |
| border: none; |
| } |
| #child { color: red; } |
| @container size(min-width: 200px) { |
| #child { color: green; } |
| } |
| </style> |
| <div id="parent"> |
| <dialog id="dialog"><span id="child"></span></dialog> |
| </div> |
| <script> |
| setup(() => assert_implements_container_queries()); |
| |
| test(() => { |
| assert_equals(getComputedStyle(child).color, "rgb(255, 0, 0)"); |
| }, "#dialog initially sized by #containing-block"); |
| |
| test(() => { |
| dialog.showModal(); |
| assert_equals(getComputedStyle(child).color, "rgb(0, 128, 0)"); |
| }, "#dialog sized by viewport"); |
| </script> |
