1. Go to: http://world.people.com.cn/
In the right top of the page dropdown control is misaligned.
III. Other browsers:
IE, FF: no issue.
Safari and Opera: has the issue
Attached is minimal testcase.
Created attachment 16532 [details]
Dropdown control is misaligned at right top of the page because of margin: -18px
I cannot immediately see that WebKit is wrong. It depends on what constitutes the "outer edge" of a box when it has negative margins.
Created attachment 19137 [details]
another test case
This issue is not a bug. It's rendered as expected in Webkit and Opera. Negative margin is a workaround for Firefox bug that renders floated select element to low in this case.
Hmm, it's better to classify the bug as evangelism issue. The site should correct its code.
Firefox renders the two test cases the same as WebKit nightly r56669.
The site still hasn't fixed the issue.
Created attachment 52080 [details]