Nav

<ul class="nav ">

  <li class="nav-item ">
    <a class="nav-link " href="/demos/startseite.html">Home</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/contentseite.html">Content</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/blogstartseite.html">Blog</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/kontaktseite.html">Contact</a>
  </li>

</ul>

<ul class="nav justify-content-center">

  <li class="nav-item ">
    <a class="nav-link " href="/demos/startseite.html">Home</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/contentseite.html">Content</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/blogstartseite.html">Blog</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/kontaktseite.html">Contact</a>
  </li>

</ul>

<ul class="nav justify-content-end">

  <li class="nav-item ">
    <a class="nav-link " href="/demos/startseite.html">Home</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/contentseite.html">Content</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/blogstartseite.html">Blog</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/kontaktseite.html">Contact</a>
  </li>

</ul>
			  
<ul class="nav nav-pills">

  <li class="nav-item ">
    <a class="nav-link " href="/demos/startseite.html">Home</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/contentseite.html">Content</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/blogstartseite.html">Blog</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/kontaktseite.html">Contact</a>
  </li>

</ul>
			  
<ul class="nav nav-tabs">

  <li class="nav-item ">
    <a class="nav-link " href="/demos/startseite.html">Home</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/contentseite.html">Content</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/blogstartseite.html">Blog</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/kontaktseite.html">Contact</a>
  </li>

</ul>
			  
<ul class="nav flex-column">

  <li class="nav-item ">
    <a class="nav-link " href="/demos/startseite.html">Home</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/contentseite.html">Content</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/blogstartseite.html">Blog</a>
  </li>

  <li class="nav-item ">
    <a class="nav-link " href="/demos/kontaktseite.html">Contact</a>
  </li>

</ul>