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<!DOCTYPE html>
<html>
<head>
<title>CSS counter order with Shadow DOM and SLOT</title>
<link rel="author" title="Martin Robinson" href="mailto:mrobinson@igalia.com">
<style>
.counted {
counter-increment: section;
}
.counted::before {
content: "C=" counter(section) " ";
}
</style>
</head>
<body>
<div>
<div class="counted">One</div>
<div class="counted">Two</div>
<div class="counted">Three</div>
</div>
</body>
</html>