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chromium/third_party/blink/web_tests/external/wpt/css/css-break/transform-023-print-ref.html 

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:[email protected]">
<p>There should be a green square on the second page, and no red.</p>
<div style="break-before:page; width:100px; height:100px; background:green;"></div>