When opening Preferences menu under IE, the active tab label is separated from the rest of the page by an horizontal line. This is due to the fact that the tab labels is drawn before the tab itself so the height change on active tab label has no effect. I tried to change the z-index property with no success. Maybe the solution should be to set a no border on the top of the tab, set black border on the bottom of inactive tab labels and add an empty tab with black border and width 100% to complete tab border.
Anyway, is it possible to transfer style properties added in options.html to jwchat.css to allow css customization of options window?