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- This WPT test may be referenced by the following Test IDs:
- /css/css-contain/container-queries/orthogonal-wm-container-query.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>CSS Container Queries Test: Orthogonal writing-mode change in @container</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/cq-testcommon.js"></script>
<link rel="stylesheet" href="/fonts/ahem.css">
<style>
#container {
container-type: size;
width: 50vw;
height: 50vh;
}
#orthogonal {
font: 50px/1 Ahem;
}
@container (max-width: 100px) {
#orthogonal {
writing-mode: vertical-lr;
}
}
</style>
<div id="container">
<div id="orthogonal">XX</div>
</div>
<script>
setup(() => assert_implements_container_queries());
test(() => {
assert_equals(orthogonal.offsetWidth, container.offsetWidth);
}, "Initial non-orthogonal width");
test(() => {
container.style.width = "100px";
assert_equals(orthogonal.offsetWidth, 50);
assert_not_equals(orthogonal.offsetWidth, container.offsetWidth);
}, "Orthogonal width");
</script>