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