chromium/src/third_party/blink/web_tests/fast/frames/frame-set-scaling-centered.html - manifest_repos/chromium_src - Git at Google

 <html style="background-color: red; transform:  scale(0.5, 0.5);"><head><title>Frame Scale Test</title></head>
   <frameset style="border: 5px solid green;" cols="30%,*">
     <frame src="data:text/html,<body bgcolor='green'></body>">
     <frame src="data:text/html,<body bgcolor='green'></body>">
   </frameset>
 </html>
	<html style="background-color: red; transform: scale(0.5, 0.5);"><head><title>Frame Scale Test</title></head>
	<frameset style="border: 5px solid green;" cols="30%,*">
	<frame src="data:text/html,<body bgcolor='green'></body>">
	<frame src="data:text/html,<body bgcolor='green'></body>">
	</frameset>
	</html>