<!DOCTYPE html> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <!-- Reference case where we've swapped in actual divs (fakeBefore/fakeAfter) for the testcase's ::before and ::after generated content. fakeBefore div is always the first child; fakeAfter is always the last. --> <html> <head> <title>CSS Reftest Reference</title> <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"> <meta charset="utf-8"> <style> .flexContainer { display: flex; margin-bottom: 2px; background: lightgray; } .fakeBefore { background: yellow; /* This 'order' value should place us after the other elements, visually, even though we're ::before. */ order: 1; } .fakeAfter { background: lightblue; order: -1; } </style> </head> <body> <!-- 'b' should be at end, due to its high 'order' value: --> <div class="flexContainer"> <div class="fakeBefore">b</div> <div>I</div> </div> <!-- 'b' should be at beginning, since it's '::before' and the other item has a matching 'order' value: --> <div class="flexContainer"> <div class="fakeBefore">b</div> <div style="order: 1">I</div> </div> <!-- 'a' should be at beginning, due to its low 'order' value: --> <div class="flexContainer"> <div>I</div> <div class="fakeAfter">a</div> </div> <!-- 'a' should be at end, since it's '::after' and the other item has a matching 'order' value: --> <div class="flexContainer"> <div style="order: -1">I</div> <div class="fakeAfter">a</div> </div> <!-- As above, the ::after 'a' should be at beginning, and the ::before 'b' should be at end, due to their 'order' values --> <div class="flexContainer"> <div class="fakeBefore">b</div> <div>I</div> <div class="fakeAfter">a</div> </div> <!-- ...but now the normal item "I" has its order increased, so it'll go at the end. --> <div class="flexContainer"> <div class="fakeBefore">b</div> <div style="order: 1">I</div> <div class="fakeAfter">a</div> </div> <!-- ...and now the normal item "I" has its order reduced, so it'll go at the beginning. --> <div class="flexContainer"> <div class="fakeBefore">b</div> <div style="order: -1">I</div> <div class="fakeAfter">a</div> </div> </body> </html>