| <!DOCTYPE html> |
| <title>CSS Overflow Test: Dynamically change a ::scroll-marker-group</title> |
| <link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group-pseudo"> |
| <link rel="match" href="scroll-marker-group-add-dynamic-001-ref.html"> |
| <style> |
| #scroller { |
| scroll-marker-group: before; |
| overflow: auto; |
| width: 200px; |
| height: 200px; |
| } |
| |
| #item::scroll-marker { |
| content: "PASS" |
| } |
| |
| #scroller::scroll-marker-group { |
| display: flex; |
| } |
| |
| #scroller.group::scroll-marker-group { |
| display: block; |
| height: 100px; |
| } |
| </style> |
| <p>Test passes if there is the word "PASS" below.</p> |
| <div id="scroller"> |
| <div id="item"></div> |
| </div> |
| <script> |
| scroller.offsetTop; |
| scroller.className = "group"; |
| </script> |