JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en-us">

  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width">
    <title>Homepage iframe tutorial</title>
  </head>

  <body class="mybody">
    <div class="page-container">
      <div class="topnav nav">
        <a href="#">MY WEBSITE</a>
        <a>Link A</a>
        <a>Link B</a>
        <a>Programs</a>
      </div>
      <div class="middle">
        <div class="leftnav nav"><a>Link C</a> <a>Link D</a> <a>More links</a> <a>Yet another</a></div>
        <div class="content">
          <h1> Home page </h1>
          <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc eleifend lorem interdum lorem sodales, vel euismod quam dapibus. Vestibulum consectetur mauris non sollicitudin ultricies. Integer gravida faucibus sapien ac aliquet. Integer ac neque porttitor, dictum ligula eget, ornare mauris.</p>

          <iframe id="my-frame" src="https://spinitron.com/WZBC/?bodyclass=my-frame&css=.head.station{display:none}"></iframe>

          <p>Suspendisse aliquet nisl non arcu laoreet sollicitudin. Ut facilisis justo mi, sit amet porta dui porta vitae. Praesent ac ultrices ipsum, non placerat enim. Aliquam ornare dui ut arcu semper, vitae vehicula enim faucibus. Suspendisse convallis sem magna, in consequat turpis congue sit amet. Proin est leo, scelerisque quis felis ut, accumsan lacinia orci. Aliquam consectetur metus aliquet, tincidunt justo eu, tempor risus.</p>
        </div>
      </div>
      <div class="footer nav"><a>Legal boilerplate blah blah</a> <a>Link E</a> <a>Link F</a></div>
    </div>
  </body>

</html>

CSS

.mybody {
  background: #eee;
}

.page-container {
  max-width: 60rem;
  font-family: sans-serif;
  margin: 0 auto;
  background: white;
}

.middle {
  display: flex;
  min-height: 30rem;
}

.nav {
  background-color: #eed;
}

.nav a {
  display: inline-block;
  padding: 0.5em;
  color: #0a4ba6;
}

.nav.leftnav a {
  display: block;
  min-width: 6em;
}

.content {
  font-family: serif;
  padding: 0 1em;
}
#my-frame {
  width: 100%;
  height: 40em;
  border: none;
}