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