<!DOCTYPE html> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <!-- Testcase for how we compute the baseline of a vertical flex container with one flex item. This is the cross-axis baseline. The spec says this about this case: If the flex container has at least one flex item, and its first flex item has a baseline parallel to the flex container's cross axis, the flex container's cross-axis baseline is that baseline. --> <html> <head> <title>CSS Test: Testing the baseline of a vertical flex container with one flex item</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-baselines"> <link rel="match" href="flexbox-baseline-single-item-001-ref.html"> <meta charset="utf-8"> <style> body { font: 14px serif; } .flexContainer { display: inline-flex; flex-direction: column; height: 16px; width: 16px; background: pink; border: 0px dotted black; /* (Elements that want a border will set their border-width.) */ } .abs { position: absolute; top: 0; font-size: 8px; } </style> </head> <body> A <div class="flexContainer">a</div> <div class="flexContainer" style="padding-bottom: 20px">a</div> <div class="flexContainer" style="padding: 10px">a</div> <div class="flexContainer" style="border-width: 3px">a</div> <div class="flexContainer" style="border-bottom-width: 4px">a</div> <div class="flexContainer" style="padding: 4px"> <!-- (An abspos child shouldn't prevent us from getting our baseline from the first flex item, which happens to be the second child.) --> <div class="abs">abs</div> <div style="font: 26px serif">a</div> </body> </html>