<!DOCTYPE html> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <html> <head> <title>CSS Test: Testing that a collapsed flex item participates in baseline alignment only for the purpose of establishing container's cross size</title> <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"> <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#algo-visibility"> <link rel="match" href="flexbox-collapsed-item-baseline-001-ref.html"> <meta charset="utf-8"> <style> .flexContainer { display: flex; width: 50px; background: yellow; border: 1px dotted black; margin: 5px; align-items: baseline; } .collapse { visibility: collapse; } .largeFont { font-size: 20px; background: lightblue; /* Our flex items get padding on opposite sides (top/bottom) so that they produce a large combined height when baseline-aligned: */ padding-top: 5px; } .smallFont { font-size: 10px; background: pink; /* Our flex items get padding on opposite sides (top/bottom) so that they produce a large combined height when baseline-aligned: */ padding-bottom: 20px; } </style> </head> <body> <!-- Second item collapsed: --> <div class="flexContainer"> <div class="largeFont">a</div> <div class="smallFont collapse">b</div> </div> <!-- First item collapsed: --> <div class="flexContainer"> <div class="largeFont collapse">a</div> <div class="smallFont">b</div> </div> </body> </html>