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