lue to offset towards the
           * top, or a positive value to offset towards the bottom.
           */
          verticalOffset: {
            type: Number,
            value: 0,
            notify: true
          },

          /**
           * If true, the dropdown will be positioned so that it doesn't overlap
           * the button.
           */
          noOverlap: {
            type: Boolean
          },

          /**
           * Set to true to disable animations when opening and closing the
  