notifications-admin/app/templates/views/conversations/messages.html

<div class="ajax-block-container">
  {% for message in conversation %}
    <div class="grid-row sms-message-row" id="n{{ message.id }}" tabindex="0">
      {% if message.inbound %}
        <div class="grid-col-8 sms-message-inbound">
          {{ message.content | string }}
          <div class="sms-message-status">
            {{ message.created_at | format_datetime_relative }}
          </div>
        </div>
      {% else %}
        <div class="grid-col-4">
          &nbsp;
        </div>
        <div class="grid-col-8">
          {{ message.content | string }}
          {% if message.status == 'delivered' %}
            <div class="sms-message-status sms-message-status-outbound">
              {{ message.created_at | format_datetime_relative }}
            </div>
          {% elif message.status in ['pending', 'sending', 'created'] %}
            <div class="sms-message-status sms-message-status-outbound hint">
              sending
            </div>
          {% else %}
            <div class="sms-message-status sms-message-status-outbound table-field-error-label">
              Failed (sent {{ message.created_at | format_datetime_relative }})
            </div>
          {% endif %}
        </div>
      {% endif %}
    </div>
  {% endfor %}
</div>