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