ungleich-staticcms/templates/blocks/slide.html

<!-- active -->
<div class="carousel-item">
  {% if this.video_mp4 %}
  <video autoplay muted loop>
    <source src="{{ this.video_mp4 }}" type="video/mp4">
  </video>
  {% elif this.background_image %}
  <img src="{{ this.background_image }}" class="d-block w-100" alt="...">
  {% endif %}
  <div class="container">
    <div class="carousel-caption">
      <h3 class="display-4">{{ this.title }}</h3>
      <p class="lead">
        {{ this.description }}
        <br>
        <a href="{{ this.button_link }}" class="btn btn-primary btn-lg" role="button" aria-pressed="true">
          {{ this.button_text }}
        </a>
      </p>
    </div>
  </div>
</div>