| <!DOCTYPE html> |
| <title>CSS Values and Units Test: sibling-index() and sibling-count() invalid in media queries</title> |
| <link rel="help" href="https://drafts.csswg.org/css-values-5/#tree-counting"> |
| <link rel="help" href="https://drafts.csswg.org/mediaqueries-5/#width"> |
| <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10982"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style id="test_sheet"> |
| #target { |
| background-color: green; |
| } |
| @media (width > CALC(0px * sibling-index())) { |
| #target { background-color: red; } |
| } |
| @media (width > CALC(0px * sibling-count())) { |
| #target { background-color: red; } |
| } |
| </style> |
| <div id="target"></div> |
| <script> |
| test(() => { |
| assert_equals(getComputedStyle(target).backgroundColor, "rgb(0, 128, 0)"); |
| }, "sibling-index() and sibling-count() are not valid in @media queries"); |
| |
| test(() => { |
| let rules = test_sheet.sheet.cssRules; |
| assert_equals(rules.length, 3); |
| assert_equals(rules[1].media.mediaText, "(width > CALC(0px * sibling-index()))"); |
| assert_equals(rules[2].media.mediaText, "(width > CALC(0px * sibling-count()))"); |
| }, "@media queries with sibling-index() and sibling-count() as general-enclosed"); |
| |
| </script> |
