File: will-change-stacking-context-opacity-2.html

package info (click to toggle)
thunderbird 1%3A115.12.0-1~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 3,463,904 kB
  • sloc: cpp: 6,971,272; javascript: 5,208,988; ansic: 3,507,245; python: 1,137,377; asm: 432,531; xml: 205,149; java: 175,761; sh: 116,483; makefile: 22,157; perl: 13,971; objc: 12,561; yacc: 4,583; pascal: 2,840; lex: 1,720; ruby: 1,075; exp: 762; sql: 666; awk: 580; php: 436; lisp: 430; sed: 70; csh: 10
file content (37 lines) | stat: -rw-r--r-- 1,067 bytes parent folder | download | duplicates (22) 
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
 
<!doctype html>
<meta charset="utf-8">
<title>CSS Test: will-change: opacity should create a stacking context for inlines.</title>
<link rel="author" title="Philip Rogers" href="mailto:pdr@chromium.org">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1119651">
<link rel="help" href="https://drafts.csswg.org/css-will-change/#will-change">
<link rel="match" href="green-square-100-by-100-ref.html">
<style>
  html, body { margin: 0; }
  .indicator {
    position: absolute;
    width: 100px;
    height: 100px;
    background: green;
    z-index: 1;
  }
  .will-change-opacity {
    will-change: opacity;
    width: 100px;
    height: 100px;
  }
  .top {
    position: absolute;
    width: 100px;
    height: 100px;
    background: red;
    z-index: 3;
  }
</style>

<div class="indicator"></div>
<span class="will-change-opacity">
  <!-- Because will-change: opacity creates a stacking context, this child
       remains on bottom even though it has a higher z-index than the indicator
       box. -->
  <div class="top"></div>
</span>