{% comment %}Hero block: headline, sanitized subline, optional image.{% endcomment %}
<div class="cms-hero">
  {% if block.image %}
    <img class="cms-hero-image" src="{{ block.image.url }}" alt="{{ block.headline }}">
  {% endif %}
  <div class="cms-hero-body">
    {% if block.headline %}<h2 class="cms-hero-headline">{{ block.headline }}</h2>{% endif %}
    {% if block.subline %}<div class="cms-hero-subline">{{ block.subline|safe }}</div>{% endif %}
  </div>
</div>