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