Element block pseudo-class :active generated with background line-height 1 z-index auto position static float none box-sizing content-box font-weight normal padding 20px font-size 16px display block transition border-radius width 160px margin 0px overflow hidden height auto cursor default text-shadow 1px 1px 1px rgba(0,0,0,0.2) transform border 0px rgba(0,0,0,1) solid box-shadow -4px -4px 9px rgba(0,0,0,0.3)