<paper-menu-button class=“share-btn”>

<paper-fab icon="social:share" class="dropdown-trigger"></paper-fab>
  <paper-menu class="dropdown-content">
    <paper-item
      onclick="window.open('https://plus.google.com/share?url={{ site.url }}/{{ site.baseurl }}/{{ page.url }}')">
      <table>
        <tbody>
          <tr>
            <td>
              <i class="fa fa-google-plus" aria-hidden="true"></i>
            </td>
            <td>
              Google+
            </td>
          </tr>
        </tbody>
      </table>
    </paper-item>
    <paper-item
      onclick="window.open('https://www.facebook.com/sharer/sharer.php?u={{ site.url }}/{{ site.baseurl }}/{{ page.url }}')">
      <table>
        <tbody>
          <tr>
            <td>
              <i class="fa fa-facebook" aria-hidden="true"></i>
            </td>
            <td>
              Facebook
            </td>
          </tr>
        </tbody>
      </table>
    </paper-item>
    <paper-item
      onclick="window.open('https://twitter.com/intent/tweet?text={{ page.title }} {{ site.url }}/{{ site.baseurl }}/{{ page.url }}')">
      <table>
        <tbody>
          <tr>
            <td>
              <i class="fa fa-twitter" aria-hidden="true"></i>
            </td>
            <td>
              Twitter
            </td>
          </tr>
        </tbody>
      </table>
    </paper-item>
    <paper-item onclick="prompt('Copy This URL','{{ site.url }}/{{ site.baseurl }}/{{ page.url }}')">
      <table>
        <tbody>
          <tr>
            <td>
              <iron-icon icon="link"></iron-icon>
            </td>
            <td>
              Copy Link
            </td>
          </tr>
        </tbody>
      </table>
    </paper-item>
  </paper-menu>
</paper-menu-button>