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<!DOCTYPE html>
<html lang=en>
<meta charset="utf-8">
<title>Selectors Level 4: focus-within</title>
<link rel="author" title="Keyong Li" href="mailto:kli79@bloomberg.net">
<link rel="author" title="Florian Rivoal" href="mailto:florian@rivoal.net">
<link rel="help" href="https://drafts.csswg.org/selectors-4/#focus-within-pseudo">
<link rel="match" href="focus-within-001-ref.html">
<meta name="flags" content="interact">
<meta name="assert" content="Test that :focus-within works on links.">
<style>
/* Suppress things that cannot be reproduced in the reference file */
:focus {
outline: none;
}
/* Use blue to indicate that the user needs to pay attention.
This element needs to be focused for the test to make sense. */
#focusme:not(:focus) {
border: solid 15px blue;
}
/* Make the link look like the div in the reference file */
#focusme {
display: block;
text-decoration: none;
color: currentColor;
}
:focus {
border: solid 5px red;
}
div:focus-within, #focusme:focus-within {
border: solid 5px green;
}
</style>
<p>Test passes if, when the element below is focused,
it is surrounded by a thick green border.
There must be no red or blue once it is focused.</p>
<div>
<div>
<a id="focusme" class="reftest-wait" onfocus="this.classList.toggle('reftest-wait');" href="">Focus this element</a>
</div>
</div>
<script>
/* This script is an optional convenience,
simply removing the need to manually focus the element.
The test is valid even if the script is not run. */
var editor = document.getElementById('focusme');
editor.focus();
</script>
<body>
</html>
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