JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" type="text/css" href="../main.css">

    <title>Test</title>
    <link href="https://getbootstrap.com/docs/4.0/examples/pricing/pricing.css" rel="stylesheet">
</head>
<body>

<div class="d-flex flex-column flex-md-row align-items-center p-3 px-md-4 mb-3 bg-white border-bottom box-shadow">
      <h5 class="my-0 mr-md-auto font-weight-normal">Company name</h5>
      <nav class="my-2 my-md-0 mr-md-3">
        <a class="p-2 text-dark" href="#">Features</a>
        <a class="p-2 text-dark" href="#">Enterprise</a>
        <a class="p-2 text-dark" href="#">Support</a>
        <a class="p-2 text-dark" href="#">Pricing</a>
      </nav>
      <a class="btn btn-outline-primary" href="#">Sign up</a>
    </div>

    <div class="pricing-header px-3 py-3 pt-md-5 pb-md-4 mx-auto text-center">
      <h1 class="display-4">Pricing</h1>
      <p class="lead">Quickly build an effective pricing table for your potential customers with this Bootstrap example. It's built with default Bootstrap components and utilities with little customization.</p>
    </div>

    <div class="container">
      <div class="card-deck mb-3 text-center">
        <div class="card mb-4 box-shadow">
          <div class="card-header">
            <h4 class="my-0 font-weight-normal">Free</h4>
          </div>
          <div class="card-body">
            <h1 class="card-title pricing-card-title">$0 <small class="text-muted">/ mo</small></h1>
            <ul class="list-unstyled mt-3 mb-4">
              <li>10 users included</li>
              <li>2 GB of storage</li>
              <li>Email support</li>
             ...