samples/_includes/html_snippet.html

{% if include.html %}
  {{ include.html }}

  {% if include.title == null %}
    <h3>HTML Snippet</h3>
  {% elsif include.title != "" %}
    <h3>{{ include.title }}</h3>
  {% endif %}

  {% highlight html %}
    {{ include.html }}
  {% endhighlight %}
{% endif %}