style-change-in-container.html (1024B)
1 <!doctype html> 2 <title>CSS Container Queries Test: recompute style inside a @container</title> 3 <link rel="help" href="https://drafts.csswg.org/css-conditional-5/#container-queries"> 4 <script src="/resources/testharness.js"></script> 5 <script src="/resources/testharnessreport.js"></script> 6 <script src="support/cq-testcommon.js"></script> 7 <style> 8 #container { container-type: size; } 9 @container (min-width: 1px) { 10 #content { color: green; } 11 } 12 </style> 13 <div id="container"> 14 <div id="content"></div> 15 </div> 16 <script> 17 setup(() => assert_implements_size_container_queries()); 18 19 let content = document.getElementById("content"); 20 21 test(() => { 22 assert_equals(getComputedStyle(content).color, "rgb(0, 128, 0)"); 23 24 // Dirty style of an element inside the container: 25 content.style.backgroundColor = "lime"; 26 27 // The container query should still evaluate correctly: 28 assert_equals(getComputedStyle(content).color, 'rgb(0, 128, 0)'); 29 }, "Basic test for container query evaluation stability"); 30 </script>