testing/web-platform/tests/css/css-color-adjust/rendering/dark-color-scheme/color-scheme-iframe-background-about-blank-ref.html


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<!doctype html>
<title>CSS Test Reference</title>
<style>:root { color-scheme: dark }</style>
<p>Should not see a white frame below</p>
<iframe width="600" height="400" src="support/dark-frame-blank.html"></iframe>