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