blob: c6649e5f93048ea909537f4ed4b4635b09c6de8b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
<!DOCTYPE html>
<html class=reftest-wait>
<meta charset="utf-8">
<meta name="assert" content="Removing position-visibility: anchors-visible from an invisible anchored element should cause it to become visible." />
<title>CSS Anchor Positioning Test: position-visibility: anchors-visible</title>
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/7758">
<link rel="match" href="position-visibility-remove-anchors-visible-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/rendering-utils.js"></script>
<style>
#scroll-container {
overflow: hidden scroll;
width: 300px;
height: 100px;
}
#anchor {
anchor-name: --a1;
width: 100px;
height: 100px;
background: orange;
}
#spacer {
height: 100px;
}
#target {
position-anchor: --a1;
position-visibility: anchors-visible;
inset-area: bottom;
width: 100px;
height: 100px;
background: green;
position: absolute;
top: 0;
left: 0;
}
</style>
<div id="scroll-container">
<div id="anchor">anchor</div>
<div id="spacer"></div>
<div id="target">target</div>
</div>
<script>
// #target should be initially visible because it is anchored to #anchor,
// which is visible.
// Scroll #anchor so that it is no longer visible.
const scroller = document.getElementById('scroll-container');
scroller.scrollTop = 100;
waitForAtLeastOneFrame().then(() => {
// Remove position-visibility: anchors-visible. #target should become
// visible again.
target.style.positionVisibility = 'initial';
takeScreenshot();
});
</script>
|