<form method="get" id="search" action="https://duckduckgo.com/">
  <input type="hidden" name="sites" value="{{ site.url }}"/>
  <input type="hidden" name="k8" value="#222222"/>
  <input type="hidden" name="k9" value="#dc4b3c"/>
  <input type="hidden" name="kt" value="h"/>
  <input type="text" id="search__input" name="q" placeholder="Search&hellip;"/ autocomplete="off">
  <button type="submit" class="btn btn-bordered" tabindex="-1">Search</button>
</form>