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