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