<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>Selectors Level 4: focus-within with shadow DOM</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/selectors-4/#focus-within-pseudo">
<link rel="help" href="https://dom.spec.whatwg.org/#shadow-trees">
<link rel="match" href="focus-within-shadow-001-ref.html">
<meta name="flags" content="dom">
<meta name="assert" content="Checks that ':focus-within' is propagated to the flat tree ancestors, even if it comes from a slotted element.">
<style>
/* Suppress things that cannot be reproduced in the reference file */
:focus {
outline: none;
}
:focus-within {
border-color: green;
}
</style>
<p>Test passes if there is a green rectangle below.</p>
<div id="log"></div>
<script>
if (!document.body.attachShadow)
document.getElementById("log").innerHTML = "<strong>Skip this test, shadow DOM is not supported.</strong>";
</script>
<div id="shadow-host">
<div id="focusme" tabindex="1"></div>
</div>
<script>
var shadowHost = document.getElementById("shadow-host");
shadowHost.attachShadow({ mode: "open"}).innerHTML =
"<style>" +
" #shadow-div:focus-within { border: solid 15px green; }" +
"</style>" +
"<div id='shadow-div'>" +
" <slot></slot>" +
"</div>";
var focusme = document.getElementById("focusme");
focusme.focus();
document.documentElement.classList.remove("reftest-wait");
</script>
</html>
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