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Test Info:

<!doctype html>
<link rel="help" href="https://drafts.csswg.org/css-viewport/">
<link rel="match" href="reference/container-queries-block-size-ref.html">
<style>
.container {
container-type: size;
width: 100px;
height: 200px;
writing-mode: vertical-lr;
}
.child {
background-color: green;
height: 50px;
width: 50px;
@container (block-size > 120px) {
background-color: red;
}
}
</style>
<p>All boxes below should be green.</p>
<div class="container">
<div class="child"></div>
</div>
<div class="container" style="zoom: 2">
<div class="child"></div>
</div>
<div class="container" style="zoom: 2">
<div class="nested" style="zoom: 2">
<div class="child"></div>
</div>
</div>
<div class="outer" style="zoom: 2">
<div class="container">
<div class="child"></div>
</div>
</div>