css/css-content/element-replacement-root-canvas-bg-ref.html - external/github.com/web-platform-tests/wpt - Git at Google

 <!doctype html>
 <title>Reference for the content CSS attribute can replace a document's root</title>

 <style>
 :root {
     background-color: aquamarine;
 }
 body {
   margin: 0;
 }
 </style>

 <img src="resources/rect.svg" />
	<!doctype html>
	<title>Reference for the content CSS attribute can replace a document's root</title>

	<style>
	:root {
	background-color: aquamarine;
	}
	body {
	margin: 0;
	}
	</style>

	<img src="resources/rect.svg" />