Element block pseudo-class :active generated with background overflow hidden font-size 16px position static float none box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight normal z-index auto padding 20px margin 0px text-shadow 1px 1px 1px rgba(0,0,0,0.2) border 0px rgba(0,0,0,1) solid line-height 1 cursor default height auto transition width 160px transform display block border-radius box-sizing content-box