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