| <!DOCTYPE html> |
| <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org"> |
| <link rel="help" href="https://www.w3.org/TR/CSS22/visudet.html#blockwidth"> |
| <style> |
| html { |
| width: 100px; |
| margin-left: auto; |
| } |
| body { /* Just to make testharness display nicely. */ |
| position: absolute; |
| left: 0; |
| right: 0; |
| } |
| </style> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| test(()=> { |
| var viewport_width = window.innerWidth; |
| var html = document.documentElement; |
| assert_equals(html.offsetLeft, viewport_width - 100); |
| }, "Root element auto margins resolve"); |
| </script> |
