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