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<!DOCTYPE html>
<html>
<head>
<style>
body > span { border: 3px solid blue }
</style>
</head>
<body>
<span
><span>One</span
><span>Two</span
><span>Three</span
><div>Four</div
><div>Five</div
><span>Six</span
><div>Seven</div
><div>Eight</div
><span>Nine</span
><span>Ten</span
></span>
</body>
</html>