File: canvas-as-container-004.html

package info (click to toggle)
firefox-esr 128.14.0esr-1~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 4,230,248 kB
  • sloc: cpp: 7,104,262; javascript: 6,088,450; ansic: 3,654,017; python: 1,212,326; xml: 594,604; asm: 420,654; java: 182,969; sh: 71,124; makefile: 20,739; perl: 13,449; objc: 12,399; yacc: 4,583; cs: 3,846; pascal: 2,973; lex: 1,720; ruby: 1,194; exp: 762; php: 436; lisp: 258; awk: 247; sql: 66; sed: 54; csh: 10
file content (33 lines) | stat: -rw-r--r-- 890 bytes parent folder | download | duplicates (8) 
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
 
<!doctype html>
<title>CSS Container Queries Test: Absolute positioned canvas as size container for focusable child with display</title>
<link rel="help" href="https://drafts.csswg.org/css-contain-3/#size-container">
<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
<style>
  @supports (container-type: size) {
    canvas:focus-within {
      background-color: green;
    }
    canvas {
      display: block;
      position: absolute;
      width: 100px;
      height: 100px;
      container-type: size;
    }
    #target { display: none; }
    @container (width = 100px) {
      #target { display: block; }
    }
  }
</style>
<p>Test passes if there is a filled green square.</p>
<canvas>
  <div id="target" tabIndex="1"></div>
</canvas>
<script>
  requestAnimationFrame(()=> {
    requestAnimationFrame(()=> {
      target.focus();
    });
  });
</script>