wpt/css/css-scroll-snap/scroll-target-align-005.html at cac62c5c97fb235950ad5aaa07089060e29f07ca · 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
<!DOCTYPE html>
<html>
<title>scrollIntoView({ block: "start" }) ignores snap position (y-axis)</title>
<link rel='help' href='https://www.w3.org/TR/css-scroll-snap-1/#choosing'>
<link rel='match' href='scroll-target-005-ref.html'>
<meta name="flags" content="may">
<meta name='assert'
      content="Test passes if the target's scroll-snap-align is ignored
               and the explicit 'start' block alignment is used
               when scrolling an element into view by script.">

<style type='text/css'>
  .container {
    border: solid blue 4px;
    height: 4em;
    overflow: auto;

    /* to make failing more obvious */
    background: 0 0 1em linear-gradient(red, red) repeat-x;
    /* avoid anti-aliasing issues */
    font: 20px/1 sans-serif;
    scrollbar-width: none;
  }
  .container > div {
    height: 1em;
  }
  #target    { scroll-snap-align: center;
               background: green; }
  .fail      { color: red;                } /* make failing more obvious   */

  /* emulate `scrollbar-width: none` for browsers that don't support it yet */
  ::-webkit-scrollbar { display: none; }
</style>

<div id='instructions'>Test passes if there is a green stripe across the first quarter of the box below and no red.</div>

<div class="container">
  <div></div>
  <div></div>
  <div></div>
  <div></div>
  <div class="fail">FAIL</div>
  <div id="target"></div>
  <div></div>
  <div></div>
  <div></div>
  <div class="fail">FAIL</div>
  <div></div>
  <div></div>
  <div></div>
  <div></div>
</div>

<script>
  document.getElementById('target').scrollIntoView({ block: "start" });
</script>