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<!doctype html>
<meta charset="utf-8">
<title>CSS Test: scroll-marker-group dynamic change</title>
<link rel="match" href="scroll-marker-group-005-ref.html">
<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group-pseudo">
<style>
div.scroll-marker-group-before {
overflow: auto;
scroll-marker-group: before;
}
div.scroll-marker-group-after {
overflow: auto;
scroll-marker-group: after;
}
div::before {
background: red;
content: "";
border-radius: 50%;
display: flex;
height: 30px;
width: 30px;
}
div::after {
background: yellow;
content: "";
border-radius: 50%;
display: flex;
height: 30px;
width: 30px;
}
div::scroll-marker-group {
background: green;
border-radius: 50%;
display: flex;
height: 30px;
width: 30px;
}
</style>
<p>Test passes if there are <strong>three circles filled red, yellow, green</strong>.
<div id="target"></div>
<script>
document.documentElement.offsetTop;
target.className = "scroll-marker-group-before";
document.documentElement.offsetTop;
target.className = "scroll-marker-group-after";
document.documentElement.offsetTop;
target.className = "";
document.documentElement.offsetTop;
target.className = "scroll-marker-group-before";
target.className = "scroll-marker-group-after";
</script>
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