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