| <!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> |
