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