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<!doctype html>
<title>CSS Container Queries Test: Grid item container</title>
<link rel="help" href="https://drafts.csswg.org/css-contain-3/#size-container">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/cq-testcommon.js"></script>
<style>
#grid {
width: 300px;
display: grid;
grid-template-columns: 2fr 1fr;
}
.item {
container-type: inline-size;
}
@container (width > 50px) {
.item div { color: lime; }
}
@container (width > 150px) {
.item div { color: green; }
}
</style>
<div id="grid">
<div class="item">
<div id="target1"></div>
</div>
<div class="item">
<div id="target2"></div>
</div>
</div>
<script>
setup(() => assert_implements_container_queries());
test(() => {
assert_equals(getComputedStyle(target1).color, "rgb(0, 128, 0)", "First item container should be 200px wide");
assert_equals(getComputedStyle(target2).color, "rgb(0, 255, 0)", "Second item container should be 100px wide");
}, "Check that children can query grid item containers");
</script>
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