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