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