- #cboxSlideshow, #cboxPrevious, #cboxNext, #cboxClose{text-indent:-9999px; width:20px; height:20px; position:absolute; top:-20px; background:url(images/controls.png) no-repeat 0 0;}
+
+ /* these elements are buttons, and may need to have additional styles reset to avoid unwanted base styles */
+ #cboxPrevious, #cboxNext, #cboxSlideshow, #cboxClose {border:0; padding:0; margin:0; overflow:visible; text-indent:-9999px; width:20px; height:20px; position:absolute; top:-20px; background:url(images/controls.png) no-repeat 0 0;}
+
+ /* avoid outlines on :active (mouseclick), but preserve outlines on :focus (tabbed navigating) */
+ #cboxPrevious:active, #cboxNext:active, #cboxSlideshow:active, #cboxClose:active {outline:0;}
+