Vertical scroll buttons don't render when the height of the div is too small. Safari may render an incomplete vertical scroll bar preventing users from navigating their content. This repros in Safari only and not on IE or FF. Please see attached HTML repro.
Created attachment 26945 [details] Demonstrates incorrectly rendered short vertical scroll bars Please see attachment for rendering issue on short vertical scroll bars in Safari
I don't see scrollbar buttons in ether of the two cases in Firefox, while I do see them on the bottom of the two in Safari. They're omitted from the top div because there isn't sufficient vertical space to display them. I'm not sure what we can really do about that.
<rdar://problem/6519640>
Created attachment 26991 [details] Side by side, Safari, Firefox, IE Note the rendering on Safari vs other browsers. User has no way to scroll their content in Safari
*** This bug has been marked as a duplicate of 5005 ***