JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<div class="container">
  <div class="row">
    <div class="col">
      <h5 class="display-5 font-weight-bold text-dark">Posts</h5>
    </div>
    <div class="col">
      <a href="" class="btn btn-primary">Btn</a>
    </div>
  </div>
</div>

<div class="container mt-4">
  <div class="card-deck">
    <div class="card p-0 shadow">
      <img class="card-img-top border-bottom" src="https://via.placeholder.com/280" alt="Card image cap">
      <div class="card-body">
        <h5 class="card-title text-dark font-weight-bold">Card title</h5>
        <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional
          content.</p>
      </div>
    </div>
    <div class="card p-0 shadow">
      <img class="card-img-top border-bottom" src="https://via.placeholder.com/280" alt="Card image cap">
      <div class="card-body">
        <h5 class="card-title text-dark font-weight-bold">Card title</h5>
        <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional
          content. This content is a little bit longer.</p>
      </div>
    </div>
     <div class="card p-0 shadow">
      <img class="card-img-top border-bottom" src="https://via.placeholder.com/280" alt="Card image cap">
      <div class="card-body">
        <h5 class="card-title text-dark font-weight-bold">Card title</h5>
        <p class="card-text">This is a longer card with supporting text below as a natural lead-in to additional
          content. This content is a little bit longer.</p>
      </div>
    </div>
     <div class="card p-0 shadow">
      <img class="card-img-top border-bottom" src="https://via.placeholder.com/280" alt="Card image cap">
      <div class="card-body">
        <h5 class="card-title text-dark font-weight-bold">Card title</h5>
        <p class="card-text">This is a longer card with...