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