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- This WPT test may be referenced by the following Test IDs:
- /css/css-conditional/container-queries/never-match-container.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>CSS Container Queries Test: @container querying size of elements without layout containment</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/cq-testcommon.js"></script>
<script>
setup(() => assert_implements_size_container_queries());
</script>
<style>
#outer-container {
width: 100px;
container-type: inline-size;
}
#container-inline, #svg-container {
width: 100px;
container-type: inline-size;
}
@container (width >= 0px) {
#inner { color: red; }
#svg-inner { fill: red; }
}
</style>
<div id="outer-container">
<span id="container-inline">
<span id="inner">Not red</span>
</span>
<svg>
<g id="svg-container">
<text x="0" y="20" id="svg-inner">Not red</text>
</g>
</svg>
</div>
<script>
const red = "rgb(255, 0, 0)";
test(() => {
assert_not_equals(getComputedStyle(inner).color, red);
}, "Size @container query against inline box never matches");
test(() => {
assert_not_equals(getComputedStyle(document.querySelector("#svg-inner")).fill, red);
}, "Size @container query against svg element never matches");
</script>