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