<h1 class="text-xl">H1.Heading</h1>
  <h2 class="text-lg">H2.Heading</h2>
  <h3 class="text-m">H3.Heading</h3>
  <h4 class="text-xm">H4.Heading</h4>
  <h5 class="text-s">H5.Heading</h5>
  <h6 class="text-xs">H6.Heading</h6>