| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.csswg.org/css-anchor-1/#propdef-anchor-name"> |
| <link rel="author" href="mailto:kojii@chromium.org"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/check-layout-th.js"></script> |
| <script src="support/test-common.js"></script> |
| <style> |
| #container { |
| position: relative; |
| transform: translate(0, 0); /* Make it a containing block. */ |
| } |
| #anchor1 { |
| anchor-name: --a1; |
| width: 5px; |
| height: 7px; |
| background: orange; |
| } |
| #anchor2 { |
| anchor-name: --a2; |
| width: 9px; |
| height: 11px; |
| background: blue; |
| } |
| #anchor3 { |
| anchor-name: --a3; |
| width: 13px; |
| height: 15px; |
| background: purple; |
| } |
| .target { |
| position: absolute; |
| } |
| </style> |
| <!-- |
| The anchors are in different containing blocks, but they still fulfill the |
| conditions: |
| * if it has a different containing block from the querying element, the last |
| containing block in its containing block chain before reaching the querying |
| element’s containing block is not, itself, positioned. |
| https://drafts.csswg.org/css-anchor-1/#determining |
| |
| From the definition of the "containing block": |
| https://drafts.csswg.org/css-position/#def-cb |
| properties such as `transform` can create a containing block without setting |
| the `position` property. |
| --> |
| <body onload="checkLayoutForAnchorPos('.target')"> |
| <div id="container"> |
| <div> |
| <div id="anchor1"></div> |
| </div> |
| <div class="target" style="left: anchor(--a1 right)" data-offset-x=5></div> |
| |
| <div> |
| <div style="transform: translate(0, 0)"> |
| <div style="position: absolute; left: 10px;"> |
| <div id="anchor2"></div> |
| </div> |
| </div> |
| </div> |
| <div class="target" style="left: anchor(--a2 right)" data-offset-x=19></div> |
| |
| <div> |
| <div style="transform: translate(0, 0)"> |
| <div style="position: fixed; left: 20px"> |
| <div id="anchor3"></div> |
| </div> |
| </div> |
| </div> |
| <div class="target" style="left: anchor(--a3 right)" data-offset-x=33></div> |
| </div> |
| </body> |
