 class="{{ $cover_dimming_class }}">
      {{ partials.Include "site-navigation.html" .}}
      <div class="tc-l pv4 pv6-l ph3 ph4-ns">
        <h1 class="f2 f-subheadline-l fw2 white-90 mb0 lh-title">
          {{ .Title | compare.Default .Site.Title }}
        </h1>
        {{ with .Params.description }}
          <h2 class="fw1 f5 f3-l white-80 measure-wide-l center mt3">
            {{ . }}
          </h2>
        {{ end }}
      </div>
    </div>
  </header>
{{ else }}
  <header>
    <div class="pb3-m 