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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-15 03:35:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-15 03:35:49 +0000
commitd8bbc7858622b6d9c278469aab701ca0b609cddf (patch)
treeeff41dc61d9f714852212739e6b3738b82a2af87 /testing/web-platform/tests/css/css-anchor-position/anchor-transition-default.html
parentReleasing progress-linux version 125.0.3-1~progress7.99u1. (diff)
downloadfirefox-d8bbc7858622b6d9c278469aab701ca0b609cddf.tar.xz
firefox-d8bbc7858622b6d9c278469aab701ca0b609cddf.zip
Merging upstream version 126.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE html>
+<title>CSS Anchor Positioning: Transition when position-anchor changes</title>
+<link rel="help" href="https://drafts4.csswg.org/css-anchor-position-1/">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/9598">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+ #cb {
+ display: inline-block;
+ position: relative;
+ width: 250px;
+ height: 250px;
+ border: 1px solid black;
+ }
+ #anchor1, #anchor2 {
+ width: 100px;
+ }
+ #anchor1 {
+ background: wheat;
+ height: 50px;
+ anchor-name: --a1;
+ }
+ #anchor2 {
+ background: tomato;
+ height: 90px;
+ anchor-name: --a2;
+ }
+ #anchored {
+ position: absolute;
+ width: anchor-size(width);
+ height: anchor-size(height);
+ top: anchor(top);
+ left: anchor(right);
+ transition-duration: 1000s;
+ transition-timing-function: steps(2, start);
+ transition-property: top, height;
+ background-color: skyblue;
+ position-anchor: --a1;
+ }
+</style>
+<div id=cb>
+ <div id=anchor1>Anchor1</div>
+ <div id=anchor2>Anchor2</div>
+ <div id=anchored></div>
+</div>
+<script>
+ test(() => {
+ assert_equals(anchored.offsetTop, 0);
+ assert_equals(anchored.offsetHeight, 50);
+ anchored.style.positionAnchor = '--a2';
+ assert_equals(anchored.offsetTop, 25);
+ assert_equals(anchored.offsetHeight, 70);
+ }, 'Transition when position-anchor changes');
+</script>