.tip {font:10px/12px
                    Arial,Helvetica,sans-serif; border:solid 1px
                    #666666; width:100px; padding:1px;
                    position:absolute; z-index:100;
                    visibility:hidden; color:#333333; top:20px;
                    left:90px; background-color:#ffffcc;
                    layer-background-color:#ffffcc;}

#NorthDome { width: 100px; }
#RoyalArches { width: 100px; }