| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| |
| body { height: 2000px; margin: 0 10px; } |
| #before, #after { height: 100px; } |
| #before { margin-bottom: 100px; } |
| #container { line-height: 100px; vertical-align: top; } |
| |
| </style> |
| <div id="container"> |
| <div id="before">before</div> |
| <span id="inline">inline</span> |
| <div id="after">after</div> |
| </div> |
| <script> |
| |
| // Tests anchoring inside an anonymous block box. The anchor selection algorithm |
| // should descend into the children of the anonymous box even though it is fully |
| // contained in the viewport. |
| |
| test(() => { |
| document.scrollingElement.scrollTop = 150; |
| |
| var span = document.querySelector("#inline"); |
| var newSpan = document.createElement("span"); |
| newSpan.innerHTML = "inserted<br>"; |
| span.parentNode.insertBefore(newSpan, span); |
| |
| assert_equals(document.scrollingElement.scrollTop, 250); |
| }, "Anchor selection descent into anonymous block boxes."); |
| |
| </script> |
