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