third_party/blink/web_tests/fast/css/zoom-stable-effective.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <style>
     #target {
         font-size: 20px;
         width: 120px;
         height: 40px;
         background-color: coral;
         zoom: 50%;
     }
     #target {
         zoom: 50%;
     }
 </style>
 <div id="target">
     Pass if small
 <div>
	<!DOCTYPE html>
	<style>
	#target {
	font-size: 20px;
	width: 120px;
	height: 40px;
	background-color: coral;
	zoom: 50%;
	}
	#target {
	zoom: 50%;
	}
	</style>
	<div id="target">
	Pass if small
	<div>