<!DOCTYPE html> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <!-- This testcase checks that we honor "align-items" on a horizontal flex container that has "overflow: hidden". We use a huge border on one of the flex items, large enough that it overflows the container, to be sure that "overflow: hidden" is actually applying. --> <html> <head> <title>CSS Test: Testing 'overflow' property on a horizontal flex container, with 'align-items: center'</title> <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"> <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#flex-containers"> <link rel="match" href="flexbox-overflow-horiz-002-ref.html"> <style> .flexContainer { background: purple; display: flex; align-items: center; width: 70px; height: 70px; float: left; margin-right: 5px; } .bigItem { background: blue; height: 10px; /* Tall border (taller than our container): */ border: solid coral; border-width: 50px 2px; flex: 3; } .smallItem { background: teal; height: 20px; flex: 1; } .hidden { overflow: hidden } </style> </head> <body> <div class="flexContainer"><!-- (overflow un-set) --> <div class="bigItem"></div> <div class="smallItem"></div> </div> <div class="flexContainer hidden"> <div class="bigItem"></div> <div class="smallItem"></div> </div> </body> </html>