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
62
|
<!DOCTYPE html>
<html class="reftest-wait" style="overflow-x:hidden;">
<title>fixed position, z-index, and mix-blend-mode</title>
<link rel="help" href="https://www.w3.org/TR/CSS2/visuren.html#fixed-positioning">
<link rel="help" href="https://www.w3.org/TR/CSS2/visuren.html#propdef-z-index">
<link rel="help" href="https://www.w3.org/TR/compositing-1/#mix-blend-mode">
<meta name="assert" content="Tests fixed, z-index, and mix-blend-mode.
Passes if there is a green box when the page is scrolled to the bottom.">
<link rel="author" title="Mason Freed" href="mailto:masonfreed@chromium.org">
<link rel="match" href="fixed-z-index-blend-ref.html">
<div class="blend"></div>
<div class="background"></div>
<div class="text">
<div style="width: 100px; height:4000px;"></div>
<div style="background: green; width: 100px; height:100px;"></div>
</div>
<style>
.blend {
display: block;
position: fixed;
z-index: 2;
top: 0;
left: 0;
bottom: 0;
right: 0;
mix-blend-mode: overlay;
}
.background {
pointer-events: none;
position: fixed;
z-index: 1;
top: 0;
left: 0;
bottom: 0;
right: 0;
opacity: 1;
}
.text {
position: relative;
z-index: 3;
overflow: hidden;
width: 100vw;
min-height: 100vh;
font-size: 50px;
line-height: 2;
}
</style>
<script src="/common/reftest-wait.js"></script>
<script>
requestAnimationFrame(()=>{
requestAnimationFrame(()=>{
window.scrollBy(0, 3000);
takeScreenshot();
});
});
</script>
</html>
|
