searxng/searx/templates/result_templates/videos.html

<div class="result">
  {% if result['favicon'] %}
  <div style="float:left; margin:2px;">
    <img width="18" height="18" src="static/img/icon_{{result['favicon']}}.ico" alt="{{result['favicon']}}.ico" title="{{result['favicon']}}.ico" />
  </div>
  {% endif %}

    <p>
      <h3 class="result_title"><a href="{{ result.url }}">{{ result.title|safe }}</a></h3>
      <a href="{{ result.url }}"><img width="300" height="170"  src="{{ result.thumbnail }}" title={{ result.title }} alt=" {{ result.title }}"/></a>
      <p class="url">{{ result.url }}</p>
    </p>
</div>