mempool/frontend/src/app/components/footer/footer.component.html

<footer class="footer">
  <div class="container-xl">
    <div class="row text-center" *ngIf="memPoolInfo">
      <div class="col d-none d-sm-block">
        <span class="txPerSecond">Tx weight per second:</span>
        <span class="" *ngIf="memPoolInfo?.vBytesPerSecond === 0; else inSync">
          &nbsp;<span class="badge badge-pill badge-warning">Backend is synchronizing</span>
        </span>
        <ng-template #inSync>
          <div class="progress sub-text">
            <div class="progress-bar {{ progressClass }}" role="progressbar" [ngStyle]="{'width': progressWidth}">{{ memPoolInfo?.vBytesPerSecond | ceil | number }} vBytes/s</div>
          </div>
        </ng-template>    
      </div>
      <div class="col">
        <span class="unconfirmedTx">Unconfirmed<span class="extra-text"> transactions</span>:</span>
        <div class="sub-text">{{ memPoolInfo?.memPoolInfo?.size | number }}</div>
      </div>
      <div class="col">
        <span class="mempoolSize">Mempool size:</span>
        <div class="sub-text">{{ mempoolSize | bytes }} ({{ mempoolBlocks }} block<span [hidden]="mempoolBlocks <= 1">s</span>)</div>
      </div>
    </div>
  </div>
</footer>