iddle;">
          <h1 style="color: #396bab">AcrossTabs</h1>
        </div>
        <div style="padding: 10px;color: #364e92;font-size: 18px;">
          Easy communication between cross-origin browser tabs
        </div>
      </div>
      <!-- Disable until post message received -->
      <button style="margin-top: 20px;width: 100%;" id="btn" class="btn" data-tab-opener="yea" v-on:click="openNewTab">
        Open New
      </button>
      <!-- enable if any tab is open -->

      <div v-if="openedTabs.le