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