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<!doctype html>
<title>CSS Container Queries Test: Size queries match content-box</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>
.container {
container-type: size;
border: 10px solid black;
padding: 40px;
margin: 20px;
}
#container1 {
box-sizing: content-box;
width: 100px;
height: 100px;
}
#container2 {
box-sizing: border-box;
width: 200px;
height: 200px;
}
#container3 {
box-sizing: content-box;
width: 100px;
height: 100px;
overflow: scroll;
}
#container4 {
box-sizing: border-box;
width: 200px;
height: 200px;
overflow: scroll;
}
@container ((width = 100px) and (height = 100px)) {
.target {
background-color: green;
height: 100%;
}
}
</style>
<div id="container1" class="container">
<div class="target"></div>
</div>
<div id="container2" class="container">
<div class="target"></div>
</div>
<div id="container3" class="container">
<div class="target"></div>
</div>
<div id="container4" class="container">
<div class="target"></div>
</div>
<script>
setup(() => assert_implements_container_queries());
const green = "rgb(0, 128, 0)";
test(() => {
assert_equals(getComputedStyle(document.querySelector("#container1 > .target")).backgroundColor, green);
}, "Size queries with content-box sizing");
test(() => {
assert_equals(getComputedStyle(document.querySelector("#container2 > .target")).backgroundColor, green);
}, "Size queries with border-box sizing");
test(() => {
assert_equals(getComputedStyle(document.querySelector("#container3 > .target")).backgroundColor, green);
}, "Size queries with content-box sizing and overflow:scroll");
test(() => {
assert_equals(getComputedStyle(document.querySelector("#container4 > .target")).backgroundColor, green);
}, "Size queries with border-box sizing and overflow:scroll");
</script>
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