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