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