<!DOCTYPE HTML> <style> body { margin: 0; } #top { position: relative; height: 500px; width: 500px; } #container { position: absolute; top: 0px; bottom: 0px; left: 0px; right: 0px; overflow: hidden; } #test { position: absolute; top: 0px; bottom: 0px; left: 0px; right: 140px; overflow: hidden; } .contents { display: inline-block; background-color: green; height: 100px; width: 100px; overflow: hidden; } </style> <script> function addChildren(test) { for (i = 0; i < 20; i++) { box = document.createElement("div"); box.setAttribute('class', 'contents'); box.setAttribute('id', i); test.appendChild(box); } } function runTest() { test = document.getElementById("test"); addChildren(test); } window.onload = runTest; </script> <div id="top"> <div id="container"> <div id="test"></div> </div> </div> crbug.com/426166: Tests positioned movement layout when it needs to layout children because it's width has changed.