<!DOCTYPE html> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <!-- This test checks that we repaint, when a flex item is brought towards the viewer in the stacking-order, without moving in the "x" or "y" dimensions onscreen, using the "order" and "left" properties. This test should end up rendering as a lime square, 100px by 100px. --> <html class="reftest-wait"> <head> <style> #container { display: flex; } #container > * { width: 100px; height: 100px; position: relative; } #a { background-color: red; } #b { background-color: lime; } .foreground { order: 1; left: -100px; } </style> <script> function tweak() { var a = document.getElementById("a"); var b = document.getElementById("b"); a.classList.remove("foreground"); b.classList.add("foreground"); document.documentElement.removeAttribute("class"); } window.addEventListener("MozReftestInvalidate", tweak, false); </script> </head> <body> <div id="container"> <div id="a" class="foreground"></div> <div id="b"></div> </div> </body> </html>