<header> element that contains one or more headings. There should usually only a small space between the
headings. The big space between the headers is 'dictated' by the rule that a %heading in a flow (so
* + %heading)
will get bigger space.
<header class="headingGroup"> <h1 class="headingS">A h1-tag with class headingXS (styling equivalent of h4)</h1> <p class="headingXXL">This is a p-tag with class headingXXL (styling equivalent of h1)</h2> </header>