File: position-absolute-container-dynamic.html

package info (click to toggle)
thunderbird 1%3A140.3.0esr-1
  • links: PTS, VCS
  • area: main
  • in suites: forky
  • size: 4,608,620 kB
  • sloc: cpp: 7,671,641; javascript: 5,901,032; ansic: 3,899,013; python: 1,413,270; xml: 653,997; asm: 462,284; java: 180,948; sh: 113,489; makefile: 20,460; perl: 14,288; objc: 13,059; yacc: 4,583; pascal: 3,352; lex: 1,720; ruby: 1,222; exp: 762; sql: 715; awk: 580; php: 436; lisp: 430; sed: 70; csh: 10
file content (35 lines) | stat: -rw-r--r-- 972 bytes parent folder | download | duplicates (23) 
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
 
<!DOCTYPE html>
<title>CSS Position Absolute: dynamic changes to containing block width</title>
<link rel="author" href="mailto:atotic@google.com">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="help" href="https://www.w3.org/TR/css-position-3/#abs-non-replaced-width">
<meta name="assert" content="abspos descendant responds to containing block size change">
<style>

#container {
  position: relative;
  width: 50px;
  height: 100px;
  background: red;
}
#target {
  position: absolute;
  left: 0;
  width: 100%;
  height: 100%;
  background: green;
}
</style>
<div id="container">
  <div style="display:flex;">
    <div id="target"></div>
  </div>
</div>
<script>
document.body.offsetTop;
test(() => {
  document.getElementById("container").style.width = "100px";
  assert_equals(document.querySelector("#target").offsetWidth, 100);
}, '#target used container width when computing size');
</script>