| <!DOCTYPE html> |
| <title>Tests the scrollable containing-block usage with position-area.</title> |
| <link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/"> |
| <link rel="help" href="https://drafts.csswg.org/css-position-4/#scrollable-containing-block"> |
| <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/12552"> |
| <style> |
| .scroller { |
| /* Use overflow hidden instead of scroll to mitigate scrollbar differences. */ |
| overflow: hidden; |
| position: relative; |
| width: 80px; |
| height: 80px; |
| margin: 10px; |
| border: solid 3px; |
| padding: 10px; |
| } |
| |
| .filler { |
| min-width: 180px; |
| min-height: 180px; |
| } |
| |
| .anchor { |
| anchor-name: --a; |
| width: 50px; |
| height: 50px; |
| position: relative; |
| left: 60px; |
| top: 60px; |
| background: orange; |
| } |
| |
| .target { |
| position: absolute; |
| position-anchor: --a; |
| place-self: stretch; |
| background: cyan; |
| } |
| </style> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/check-layout-th.js"></script> |
| <body onload="checkLayout('.target')"> |
| |
| <!-- top --> |
| <div class="scroller"> |
| <div class="filler"><div class="anchor"></div></div> |
| <div class="target" style="position-area: top;" data-offset-x="0" data-offset-y="0" data-expected-width="200" data-expected-height="70"></div> |
| </div> |
| |
| <!-- right --> |
| <div class="scroller"> |
| <div class="filler"><div class="anchor"></div></div> |
| <div class="target" style="position-area: right;" data-offset-x="120" data-offset-y="0" data-expected-width="80" data-expected-height="200"></div> |
| </div> |
| |
| <!-- bottom --> |
| <div class="scroller"> |
| <div class="filler"><div class="anchor"></div></div> |
| <div class="target" style="position-area: bottom;" data-offset-x="0" data-offset-y="120" data-expected-width="200" data-expected-height="80"></div> |
| </div> |
| |
| <!-- left --> |
| <div class="scroller"> |
| <div class="filler"><div class="anchor"></div></div> |
| <div class="target" style="position-area: left;" data-offset-x="0" data-offset-y="0" data-expected-width="70" data-expected-height="200"></div> |
| </div> |
