I noticed that the "#SidebarOptions a" displays a little extra on
padding-top in firefox, until you click an item, then the clicked item
resizes down to the specified value.
This is especially visible when the page is refreshed while the
optionPanel is visible.
It is as if there is a padding difference between a and a:visited.
Nothing of the kind happens in my iexplorer7.
Firefox bug? cookie thing? or maybe this is intended? -