datat.fi/_includes/page-intro.html

<header id="intro">
  <div class="inner">
    <div class="intro-text">
      <h1 class="intro-title">{{ page.alt_title | default: page.title | default: site.title | markdownify | strip_html }}</h1>
      {% if page.sub_title %}
        <p class="intro-subtitle">{{ page.sub_title | markdownify | strip_html }}</p>
      {% endif %}

      {% if page.date %}
        {% include author %}
        <p class="entry-meta">
          {% if author_name %}<span class="byline-item">{{ author_name | prepend: 'by ' }}</span>{% endif %}<span class="byline-item"><time datetime="{{ page.date | date_to_xmlschema }}">{{ page.date | date: "%B %-d, %Y" }}</time></span>
        </p>
      {% endif %}

      {% if page.introduction %}
        <div class="intro-more">
          {{ page.introduction | markdownify }}
        </div>
      {% endif %}

      {% if page.actions %}
        <ul class="intro-actions">
          {% for action in page.actions %}
            <li><a href="{{ action.url }}" class="btn">{% if action.icon %}<span class="icon">{% include {{ action.icon | prepend: 'icon-' | append: '.svg' }} %}</span>{% endif %}{{ action.label }}</a></li>
          {% endfor %}
        </ul>
      {% endif %}
    </div>
  </div>
</header>