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