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
|
<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://drafts.csswg.org/cssom/#the-csspagerule-interface">
<title>Add / remove declarations inside CSSMarginRule</title>
<style id="sheet">
@page {
@top-center {}
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
var sheet = document.getElementById("sheet").sheet;
var marginRule = sheet.rules[0].cssRules[0];
var style = marginRule.style;
test(() => {
assert_equals(style.length, 0);
style.setProperty("widows", "7");
assert_equals(style.length, 1);
assert_equals(style.widows, "7");
style.setProperty("margin-left", "50%");
assert_equals(style.length, 2);
assert_equals(style.marginLeft, "50%");
style.setProperty("margin-left", "100px");
assert_equals(style.length, 2);
assert_equals(style.marginLeft, "100px");
style.setProperty("margin", "auto");
assert_equals(style.length, 5);
assert_equals(style.marginLeft, "auto");
}, "Add declarations");
test(() => {
assert_equals(style.length, 5);
style.removeProperty("widows");
assert_equals(style.length, 4);
style.removeProperty("margin");
assert_equals(style.length, 0);
}, "Remove declarations");
</script>
|
