animation-worklet/resources/iframe.html - external/w3c/web-platform-tests - Git at Google

 <!DOCTYPE html>
 <style>
 #iframe_box {
   width: 100px;
   height: 100px;
   background-color: green;
 }
 </style>
 <div id='iframe_box'></div>
	<!DOCTYPE html>
	<style>
	#iframe_box {
	width: 100px;
	height: 100px;
	background-color: green;
	}
	</style>
	<div id='iframe_box'></div>