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<html>
<meta charset="utf8">
<title>Content Visibility: focus on display none element</title>
<link rel="author" title="Rakina Zata Amni" href="mailto:rakina@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
<meta name="assert" content="tab navigation skips display none elements in an auto subtree">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=spacer style="height: 3000px"></div>
<div id="host">
<input id="slotted" type="text">
</div>
<script>
test(() => {
const container = document.createElement("div");
container.innerHTML = "<slot></slot>";
container.style = "content-visibility: auto";
const shadowRoot = host.attachShadow({ mode: "open" });
shadowRoot.appendChild(container);
assert_not_equals(document.activeElement, slotted);
slotted.focus();
assert_equals(document.activeElement, slotted);
}, "Targetting a slotted auto-hidden element with focus makes it the active element");
</script>
</html>
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