File: will-change-abspos-cb-dynamic-001.html

package info (click to toggle)
thunderbird 1%3A143.0.1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 4,703,968 kB
  • sloc: cpp: 7,770,492; javascript: 5,943,842; ansic: 3,918,754; python: 1,418,263; xml: 653,354; asm: 474,045; java: 183,079; sh: 111,238; makefile: 20,410; perl: 14,359; objc: 13,059; yacc: 4,583; pascal: 3,405; lex: 1,720; ruby: 999; exp: 762; sql: 715; awk: 580; php: 436; lisp: 430; sed: 69; csh: 10
file content (34 lines) | stat: -rw-r--r-- 995 bytes parent folder | download | duplicates (28) 
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
 
<!doctype html>
<meta charset="utf-8">
<title>CSS Test: will-change: position turns an element in an abspos containing block when changed dynamically.</title>
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="author" title="Mozilla" href="https://mozilla.org">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1499863">
<link rel="help" href="https://drafts.csswg.org/css-will-change/#will-change">
<link rel="match" href="will-change-abspos-cb-001-ref.html">
<style>
  .container {
    border: 1px solid green;
    width: 100px;
    height: 100px;
    margin-top: 100px;
  }
  .abspos {
    position: absolute;
    top: 0;
    left: 0;
    background: orange;
    height: 20px;
    width: 20px;
  }
</style>
<div class="container">
  <div class="abspos"></div>
</div>
<script>
onload = function() {
  let container = document.querySelector(".container");
  container.offsetTop;
  container.style.willChange = "position";
}
</script>