<!DOCTYPE html> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <!-- Reference case, using inline-block instead of inline-flex, and with the unaligned children taken out of baseline-alignment with "vertical-align:top". --> <html> <head> <title>CSS Reftest Reference</title> <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"> <meta charset="utf-8"> <style> body { margin: 0; font-size: 20px; line-height: 20px; } .flexContainer { display: inline-block; background: lightblue; vertical-align: top; } .hugeAndUnaligned { font-size: 35px; line-height: 35px; vertical-align: top; } .smallFont { font-size: 10px; line-height: 10px; } .flexContainer > * { display: inline; } </style> </head> <body> a <div class="flexContainer"> <div class="smallFont">b</div ><div>c</div ><div class="hugeAndUnaligned">d</div> </div> <div class="flexContainer"> <div class="hugeAndUnaligned">e</div ><div>f</div ><div class="smallFont">g</div> </div> <div class="flexContainer"> <div class="hugeAndUnaligned">h</div ><div class="smallFont">i</div ><div>j</div> </div> </body> </html>