simple-s3-gallery/templates/card.html

<div class="col">
  <div class="card shadow-sm">
    <div class="card-header text-end">
      <a
        href="#"
        class="btn btn-light"
        data-bs-toggle="tooltip"
        data-bs-placement="top"
        data-bs-title="Add a reaction"
      >
        <i class="bi bi-heart-fill" style="font-size: 1rem; color: pink;"></i>
      </a>
    </div>

    <img
      class="card-image-top"
      width="{{ width | default('100%') }}"
      height="{{ height | default('225') }}"
      src="{{ src }}"
      alt="{{ alt_text if alt_text else title }}"
    />

    <div class="card-body">
      <h5 class="card-title text-center">{{ title }}</h5>
      <p class="card-text">{{ description | default('') }}</p>
    </div>

    <div class="card-footer text-body-secondary text-end">
      {% if reactions %}
        {% for reaction in reactions %}
        {# TODO: limit total number of reactions shown #}
      <span class="badge rounded-pill">
        <svg class="bi" width="1rem" height="1rem"><use xlink:href="#{{ reaction }}" /></svg>
      </span>
        {% endfor %}
      {% endif %}
    </div>

  </div>
</div>