css/css-pseudo/slider/slider-track-003-notref.html - external/github.com/web-platform-tests/wpt - Git at Google

 <!doctype html>
 <title>::slider-track reference</title>
 <style>
   progress { appearance: none }
   ::slider-track {
     background: blue;
   }
 </style>
 <progress value="0.5">
	<!doctype html>
	<title>::slider-track reference</title>
	<style>
	progress { appearance: none }
	::slider-track {
	background: blue;
	}
	</style>
	<progress value="0.5">