<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>CSS Test: 'contain: paint' should contain floats as a formatting context.</title> <link rel="author" title="Kyle Zentner" href="mailto:zentner.kyle@gmail.com"> <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-paint"> <link rel="match" href="contain-paint-formatting-context-float-001-ref.html"> <style> #left { float: left; height: 50px; width: 10px; background: blue; } #a { contain: paint; background: red; margin: 10px; width: 50px; height: 50px; } #b { clear: left; width: 50px; height: 50px; background: green; } </style> </head> <body> <div id="left"></div> <div id="a"> <div id="b"></div> </div> </body> </html>