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