<!DOCTYPE html> <title>CSS Overflow and Transforms: css-overflow-3</title> <link rel="author" title="mailto:atotic@google.com"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <link rel="help" href="https://www.w3.org/TR/css-overflow-3/#scrollable"> <meta name="assert" content="css transform is used to compute scroll overflow of abspos children"> <style> #container { position: relative; overflow: auto; width: 200px; height: 200px; } #target { position: absolute; width: 150px; height: 150px; margin-left: 100px; transform: translateX(-100px); background: green; } </style> <!-- There should be no scrollbars on this page --> <div id="container"> <div id="target"></div> </div> <script> test(() => { assert_equals(document.querySelector("#container").scrollWidth, 200); }, '#target used transform when computing scroll overflow'); </script>