| <!DOCTYPE html> |
| <title>@scope - inner @starting-style</title> |
| <link rel="help" href="https://drafts.csswg.org/css-cascade-6/#scope-atrule"> |
| <link rel="help" href="https://github.com/w3c/csswg-drafts/pull/8876"> |
| <link rel="help" href="https://drafts.csswg.org/css-cascade-5/#scope-scope"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| @scope (.a) { |
| @starting-style { |
| :scope { |
| width: 100px; |
| } |
| |
| .b { |
| width: 100px; |
| } |
| } |
| } |
| |
| .a, .b { |
| transition: width 100s steps(2, start); /* 50% progress */ |
| width: 200px; |
| } |
| </style> |
| <main> |
| <div class=a> |
| <div class=b> |
| </div> |
| </div> |
| <div class=b></div> |
| </main> |
| <script> |
| test(() => { |
| let a = document.querySelector('main > .a'); |
| let b = document.querySelector('main > .a > .b'); |
| assert_equals(getComputedStyle(a).width, '150px'); |
| assert_equals(getComputedStyle(b).width, '150px'); |
| |
| let out_of_scope_b = document.querySelector('main > .b'); |
| assert_equals(getComputedStyle(out_of_scope_b).width, '200px'); |
| }, 'Style rules within @starting-style are scoped'); |
| </script> |
