chromium/src/third_party/blink/web_tests/external/wpt/css/css-backgrounds/background-margin-iframe-root-ref.html - manifest_repos/chromium_src - Git at Google

 <!doctype HTML>
 <iframe srcdoc="
 <!doctype HTML>
 <style>
   div {
     background: linear-gradient(lightblue, yellow);
     background-size: 300px 300px;
     background-position: 50px 50px;
     position: absolute;
     top: 0;
     left: 0;
     right: 0;
     bottom: 0;
   }
 </style>
 <div></div>"></iframe>
	<!doctype HTML>
	<iframe srcdoc="
	<!doctype HTML>
	<style>
	div {
	background: linear-gradient(lightblue, yellow);
	background-size: 300px 300px;
	background-position: 50px 50px;
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	}
	</style>
	<div></div>"></iframe>