wpt/css/css-contain/contain-paint-clip-001.html at master · web-platform-tests/wpt · GitHub

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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>CSS Test: 'contain: paint' with various overflowing block descendants.</title>
  <link rel="author" title="Kyle Zentner" href="mailto:zentner.kyle@gmail.com">
  <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-paint">
  <link rel="match" href="contain-paint-clip-001-ref.html">
  <style>
  .root {
    contain: paint;
    width: 100px;
    height: 100px;
    background: blue;
    margin: 25px;
    padding: 25px;
  }
  .a {
    width: 100px;
    height: 200px;
    background: red;
  }
  .b {
    width: 150px;
    height: 150px;
    background: green;
    position: relative;
    top: -25px;
    left: -25px;
  }
  .background {
    position: absolute;
    top: 0;
    left: 0;
    width: 200px;
    height: 200px;
    background: red;
    z-index: -1;
  }
  .foreground {
    position: absolute;
    top: -25px;
    left: -25px;
    width: 150px;
    height: 150px;
    border: 25px solid red;
    z-index: 1;
  }
  </style>
</head>
<body>
  <div class="root">
    <div class="a">
      <div class="b"></div>
      <!--These two absolutely positioned elements are checking that all sides are-->
      <!--clipped.  They also test that clipping is done correctly on absolutely-->
      <!--positioned elements.-->
      <div class="background"></div>
      <div class="foreground"></div>
    </div>
  </div>
</body>
</html>