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