food-tracker/templates/header.html

<header id="header" hx-swap-oob="true">
  <span>
    Datum: {{ date }}
  </span>
  <div>
    <span>
      kc: {{ sum.kc }}
    </span>
    <span>
      Protein: {{ sum.protein }}
    </span>
    <span>
      Balaststoffe: {{ sum.bs }}
    </span>
  </div>
</header>