<!DOCTYPE html> <!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <html> <meta charset="utf-8"> <title>CSS Overflow Test: Testing an empty child box and its container's scrollable overflow area</title> <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com"> <link rel="author" title="Mozilla" href="https://www.mozilla.org/"> <link rel="help" href="https://drafts.csswg.org/css-overflow-3/#scrollable"> <meta name="assert" content="This test verifies that an empty child box shouldn't contribute to its parents scrollable overflow area."> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/resources/check-layout-th.js"></script> <style> .container { border: 1px solid black; width: 200px; height: 100px; } .empty { position: relative; width: 0px; height: 0px; left: 500px; top: 300px; box-shadow: 0 0 0 10px blue; } </style> <body onload="checkLayout('.container')"> <p>You should see no scrollbars in these container because an empty child box shouldn't contribute to its parents scrollable overflow area. </p> <div class="container" style="overflow: visible" data-expected-scroll-width="200" data-expected-scroll-height="100"> <div class="empty"></div> </div> <div class="container" style="overflow: auto" data-expected-scroll-width="200" data-expected-scroll-height="100"> <div class="empty"></div> </div> <div class="container" style="overflow: hidden" data-expected-scroll-width="200" data-expected-scroll-height="100"> <div class="empty"></div> </div> <div class="container" style="overflow: clip" data-expected-scroll-width="200" data-expected-scroll-height="100"> <div class="empty"></div> </div> </body> </html>