stundenfuchs/app/templates/ui/page_header.html

{% macro page_header(title, subtitle='') -%}
  <header class="page-header">
    <h1 class="page-header__title">{{ title }}</h1>
    {% if subtitle %}<p class="page-header__subtitle muted">{{ subtitle }}</p>{% endif %}
  </header>
{%- endmacro %}