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