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