File: is-specificity.html

package info (click to toggle)
firefox-esr 91.13.0esr-1~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 3,375,652 kB
  • sloc: cpp: 5,762,054; javascript: 5,481,714; ansic: 3,121,191; python: 851,492; asm: 331,172; xml: 178,949; java: 155,554; sh: 63,704; makefile: 20,127; perl: 12,825; yacc: 4,583; cs: 3,846; objc: 3,026; lex: 1,720; exp: 762; pascal: 635; php: 436; lisp: 260; awk: 231; ruby: 103; sed: 53; sql: 46; csh: 45
file content (41 lines) | stat: -rw-r--r-- 1,259 bytes parent folder | download | duplicates (26) 
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
 
<!DOCTYPE html>
<html>
  <head>
    <title>CSS Selectors: :is()</title>
    <link rel="author" title="Victoria Su" href="mailto:victoriaytsu@google.com">
    <link rel="help" href="https://drafts.csswg.org/selectors-4/#matches">
    <meta name="assert" content="This tests that the :is() selector chooses the correct specificity">
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <style>
      .b.c + .d + .q.r + .s + #target {
        font-size: 10px;
        height: 10px;
        width: 10px;
      }
      :is(.a, .b.c + .d, .q) + :is(* + .p, .q.r + .s, * + .t) + #target {
        height: 20px;
        width: 20px;
      }
      .b.c + .d + .q.r + .s + #target {
        width: 30px;
      }
    </style>
  </head>
  <body>
    <div class="b c"></div>
    <div class="a d e"></div>
    <div class="q r"></div>
    <div class="p s t"></div>
    <div id="target"></div>
    <script>

      test(() => {
        assert_equals(getComputedStyle(target).width, "30px");
        assert_equals(getComputedStyle(target).height, "20px");
        assert_equals(getComputedStyle(target).fontSize, "10px");
      }, "Test :is() uses highest possible specificity");

    </script>
  </body>
</html>