css/css-backgrounds/animations/background-color-animation-with-blur-ref.html - external/w3c/web-platform-tests - Git at Google

 <!DOCTYPE html>
 <html>
 <style>
   #target {
     height:  100px;
     width:  100px;
     background:  green;
     display:  inline-block;
     margin:  10px;
   }
   #container {
     filter:  blur(5px);
   }
 </style>
 <body>
   <div id="container">
     <div id="target"></div>
   </div>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<style>
	#target {
	height: 100px;
	width: 100px;
	background: green;
	display: inline-block;
	margin: 10px;
	}
	#container {
	filter: blur(5px);
	}
	</style>
	<body>
	<div id="container">
	<div id="target"></div>
	</div>
	</body>
	</html>