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
|
<!DOCTYPE html>
<title>CSS Anchor Positioning Test: position fallbacks list limit</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#fallback-apply">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#container {
position: relative;
width: 200px;
height: 200px;
}
.positioned {
width: 200px;
height: 200px;
position: absolute;
top: 0;
left: 10px; /* overflowing #container */
}
@position-try --bar {
left: 0; /* not overflowing #container */
}
#t1 {
/* If --foo is not found, we should still try --bar even if we limit the
number of applied position fallbacks to five because the --foo's are not
added to the `position fallbacks list` per spec. */
position-try-fallbacks: --foo, --foo, --foo, --foo, --foo, --foo, --foo, --bar;
}
/* --f1 .. --f4 all overflowing #container */
@position-try --f1 { left: 10px; }
@position-try --f2 { left: 10px; }
@position-try --f3 { left: 10px; }
@position-try --f4 { left: 10px; }
@position-try --f5 { left: 20px; width: 20px; /* not overflowing #container */ }
#t2 {
position-try-fallbacks: --f1, --f2, --f3, --f4, --f5;
}
</style>
<div id="container">
<div id="t1" class="positioned"></div>
<div id="t2" class="positioned"></div>
</div>
<script>
test(() => {
assert_equals(t1.offsetLeft, 0, "The --bar try fallback should be applied");
}, "Try fallbacks which are not found are not part of the limit");
test(() => {
assert_equals(t2.offsetLeft, 20, "The --f5 try fallback should be applied");
}, "Must support At least five try fallbacks");
</script>
|
