<!DOCTYPE html> <title>Image set calc x rendering</title> <link rel="help" href="https://drafts.csswg.org/css-images-4/#image-set-notation"> <link rel="match" href="reference/image-set-rendering-ref.html"> <meta name="assert" content="image-set calc x rendering"> <style> #test { background-image: image-set(url("/images/green.png") calc(0.5x * 2)); width: 100px; height: 100px; } </style> <div id="test"></div>