| <!DOCTYPE html> |
| <div style="writing-mode:vertical-lr; position:absolute; height:500px; right:0;"> |
| <!-- With such large vertical borders and padding, the content box height |
| of the following block should become 0, since its available height is |
| just 500px. The percentage padding specified on its child should |
| resolve to 0 for all sides, since percentage padding is always |
| resolved against the logical *width* of the containing block (even for |
| padding-left and padding-right). --> |
| <div style="position:relative; padding:1234567890px 0; border-width:1234567890px 0; border-style:solid;"> |
| <div id="inner" style="padding:10%; width:300px;"></div> |
| </div> |
| <!-- And here's a sibling to verify that the insane border and padding and |
| percentage padding resolution didn't have any ill effects on block |
| progression. --> |
| <div id="sibling"></div> |
| </div> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| test(() => { |
| assert_equals(document.getElementById("sibling").offsetLeft, 300); |
| assert_equals(document.getElementById("inner").offsetHeight, 0); |
| assert_equals(document.getElementById("inner").offsetWidth, 300); |
| }, "Sizes should never become negative"); |
| </script> |
