File: stacking-context-transform-none-animation-before-appending-element.html

package info (click to toggle)
thunderbird 1%3A91.13.0-1~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 2,953,400 kB
  • sloc: cpp: 6,084,049; javascript: 4,790,441; ansic: 3,341,496; python: 862,958; asm: 366,542; xml: 204,277; java: 152,477; sh: 111,436; makefile: 21,388; perl: 15,312; yacc: 4,583; objc: 3,026; lex: 1,720; exp: 762; pascal: 635; awk: 564; sql: 453; php: 436; lisp: 432; ruby: 99; sed: 69; csh: 45
file content (31 lines) | stat: -rw-r--r-- 937 bytes parent folder | download | duplicates (33) 
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
 
<!DOCTYPE html>
<html class="reftest-wait reftest-no-flush">
<!--
  reftest-no-flush above is necessary to make invalidation changes happen.
  Without it, reftest harness takes the snapshot on the next frame after the
  frame that a paint for appending the element happened.
 -->
<title>Transform animation whose target is not initially associated with any document creates a stacking context even if it has only 'transform:none' in its keyframe</title>
<style>
span {
  height: 100px;
  width: 100px;
  position: fixed;
  background: green;
  top: 50px;
}
div {
  width: 100px; height: 100px;
  background: blue;
}
</style>
<span></span>
<script>
  var div = document.createElement("div")
  var anim = div.animate({ transform: ['none', 'none'] },
                         { duration: 100000 });
  anim.ready.then(() => {
    document.body.appendChild(div);
    document.documentElement.classList.remove("reftest-wait");
  });
</script>