contain-intrinsic-size-032.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-sizing/contain-intrinsic-size/contain-intrinsic-size-032.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>CSS contain-intrinsic-size: single-select list box</title>

<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">

<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">

<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#list-box">

<style>

.ciw-0 {

  contain-intrinsic-width: 0px;

.ciw-100 {

  contain-intrinsic-width: 100px;

.cih-0 {

  contain-intrinsic-height: 0px;

.cih-100 {

  contain-intrinsic-height: 100px;

select {

  padding: 0;

  border: solid;

  margin: 5px;

.test {

  contain: size;

</style>

<!-- To measure the size of an empty <select> without size containment -->

<select id="reference"></select>

<select class="test ciw-none cih-none"

    data-expected-client-width="default" data-expected-client-height="default"></select>

<select class="test ciw-none cih-0"

    data-expected-client-width="default" data-expected-client-height="0"></select>

<select class="test ciw-none cih-100"

    data-expected-client-width="default" data-expected-client-height="100"></select>

<select class="test ciw-0 cih-none"

    data-expected-client-width="0" data-expected-client-height="default"></select>

<select class="test ciw-0 cih-0"

    data-expected-client-width="0" data-expected-client-height="0"></select>

<select class="test ciw-0 cih-100"

    data-expected-client-width="0" data-expected-client-height="100"></select>

<select class="test ciw-100 cih-none"

    data-expected-client-width="100" data-expected-client-height="default"></select>

<select class="test ciw-100 cih-0"

    data-expected-client-width="100" data-expected-client-height="0"></select>

<select class="test ciw-100 cih-100"

    data-expected-client-width="100" data-expected-client-height="100"></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;

const normalHeight = reference.clientHeight;

for (let test of document.querySelectorAll(".ciw-none")) {

  test.dataset.expectedClientWidth = normalWidth;

for (let test of document.querySelectorAll(".cih-none")) {

  test.dataset.expectedClientHeight = normalHeight;

checkLayout('.test');

</script>