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<!doctype html>
<meta charset="utf-8">
<title>CSS contain-intrinsic-size: select multiple</title>
<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
<meta name="assert" content="contain-intrinsic-size sizes select multiple">
<style>
.cis-both {
contain-intrinsic-size: 55px 66px;
}
.cis-width {
contain-intrinsic-size: 55px none;
}
.cis-height {
contain-intrinsic-size: none 66px;
}
select {
padding: 0;
}
.test {
contain: size;
background: lightblue;
border: 1px solid blue;
margin: 5px;
}
</style>
<!-- To measure the size of an empty <select> without size containment -->
<select id="reference" multiple size="2"></select>
<select multiple class="test cis-both"
data-expected-client-width="55" data-expected-client-height="66"></select>
<select multiple class="test cis-width"
data-expected-client-width="55"></select>
<select multiple class="test cis-height"
data-expected-client-height="66"></select>
<select multiple size="2" class="test cis-width"
data-expected-client-width="55"></select>
<select multiple size="2" class="test cis-height"
data-expected-client-height="66"></select>
<select multiple size="10" class="test cis-width"
data-expected-client-width="55"></select>
<select multiple size="10" class="test cis-height"
data-expected-client-height="66"></select>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script>
const reference = document.getElementById("reference");
const normalWidth = reference.clientWidth;
for (let test of document.querySelectorAll(".test.cis-width")) {
reference.size = test.size || 4;
test.dataset.expectedClientHeight = reference.clientHeight;
}
for (let test of document.querySelectorAll(".test.cis-height")) {
test.dataset.expectedClientWidth = normalWidth;
}
checkLayout('.test');
</script>
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