<div class="traffic-bar">
  <div class="period-from">{{ barData.prevDate }}</div>
  <div class="vertical-progress-bar">
    <div class="progress-line"
         [style.height.%]="barData.prevValue">
    </div>
  </div>
  <div class="vertical-progress-bar">
    <div class="progress-line"
         [style.height.%]="barData.nextValue"
         [class.success]="successDelta"
         [class.failure]="!successDelta">
    </div>
  </div>
  <div class="period-to">{{ barData.nextDate }}</div>
</div>
