>>You should be able to see the area being allotted to the element....
>>And what styles are being applied ?
>
>I think Safari just not support a UL to be spanned. When it sees it, it will place it down below.

Don't see a span in the code you posted. Also bear in mind :
(a) that the behaviour may be caused by styles on adjacent elements
(b) you should still be able to override the native browser styling....