<?xml version="1.0" encoding="UTF-8"?> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <!-- This test inserts a new div into some inline content in a flex container. That should split the inline content into two flex items. --> <html xmlns="http://www.w3.org/1999/xhtml" class="reftest-wait"> <head> <link rel="stylesheet" type="text/css" href="ahem.css" /> <script> function tweak() { var flexbox = document.getElementsByClassName("flexbox")[0]; var insertionPoint = flexbox.firstChild.nextSibling.nextSibling; var newDiv = document.createElement("div"); newDiv.setAttribute("class", "b"); flexbox.insertBefore(newDiv, insertionPoint); document.documentElement.removeAttribute("class"); } window.addEventListener("MozReftestInvalidate", tweak, false); </script> <style> div { height: 100px; } div.flexbox { font: 10px Ahem; width: 200px; display: flex; } div.a { flex: 1 0 20px; background: lightgreen; } div.b { flex: 2 0 30px; background: yellow; } div.inflex { flex: 0 0 20px; background: gray; } </style> </head> <body> <div class="flexbox" ><div class="a"/>text<i>italic</i ><div class="inflex"/></div> </body> </html>