operty {
        background: var(--paper-grey-200);
      }

      iron-doc-property:first-of-type {
        border-top-left-radius: 3px;
        border-top-right-radius: 3px;
      }

      iron-doc-property:last-of-type {
        border-bottom-left-radius: 3px;
        border-bottom-right-radius: 3px;
      }

      /* Private Properties */

      iron-doc-property[private] {
        display: none;
      }

      :host(.show-private) iron-doc-property[private] {
        display: block;
        background: