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