JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">

    <nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
      <a class="navbar-brand" href="#">Navbar</a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>

      <div class="collapse navbar-collapse" id="navbarsExampleDefault">
      <!--Applying mx-auto here, makes the navigation go somewhat to the middle: -->
        <!--<ul class="navbar-nav mr-auto"> to-->
        <ul class="navbar-nav mx-auto">
          <li class="nav-item active">
            <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#">About</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#">Contact</a>
          </li>
          
        </ul>
        
      </div>
    </nav>

    <main role="main">

      <!-- Main jumbotron for a primary marketing message or call to action -->
      <div class="jumbotron">
        <div class="container">
          <h1 class="display-3">Hello, world!</h1>
          <p>This is a template for a simple marketing or informational website. It includes a large callout called a jumbotron and three supporting pieces of content. Use it as a starting point to create something more unique.</p>
          <p><a class="btn btn-primary btn-lg" href="#" role="button">Learn more &raquo;</a></p>
        </div>
      </div>

      <div class="container">
        <!-- Example row of columns -->
        <div class="row">
          <div class="col-md-4">
            <h2>Heading</h2>
            <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris...