6. Jumbotron: Fonts -- What is wrong with this


#1

What is wrong with this

<!DOCTYPE html>
<html> 
  <head>
   <link href="main.css" rel="stylesheet">
   <link href="http://s3.amazonaws.com/codecademy-content/courses/ltp/css/shift.css" rel="stylesheet">
  </head>
  
  <body>
    <div class="nav">
      <div class="container">
        <ul>
          <li><a href="#">Airbnb logo</a></li>
          <li><a href="#">Browse</a></li>
        </ul>
        <ul>
          <li><a href="#">Sign Up</a></li>
          <li><a href="#">Log In</a></li>
          <li><a href="#">Help</a></li>
        </ul>
      </div>
    </div>

    <div class="jumbotron">
      <div class="container">
        <h1>Find a place to stay.</h1>
        <p>Rent from people in over 34,000 cities and 192 countries.</p>
      </div>
    </div> 

    <div class="learn-more">
	  <div>
		<div>
	  	  <div>
			<h3>Travel</h3>
			<p>From apartments and rooms to treehouses and boats: stay in unique spaces in 192 countries.</p>
			<p><a href="#">See how to travel on Airbnb</a></p>
		  </div>
		  <div>
			<h3>Host</h3>
			<p>Renting out your unused space could pay your bills or fund your next vacation.</p>
			<p><a href="#">Learn more about hosting</a></p>
		  </div>
		  <div>
			<h3>Trust and Safety</h3>
			<p>From Verified ID to our worldwide customer support team, we've got your back.</p>
			<p><a href="#">Learn about trust at Airbnb</a></p>
		  </div>
	    </div>
	  </div>
	</div>
	 

  </body>
</html>

main.css

.nav a {
  color: #5a5a5a;
  font-size: 11px;
  font-weight: bold;
  padding-bottom: 14px;
  padding-left: 10px;
  padding-right: 10px;
  padding-top: 14px;
  text-transform: uppercase;
}
.jumbotron {
 background-image: url('https://goo.gl/04j7Nn');
 height:500px;
}
  
 
  <div class="jumbotron">..</div>
  .jumbotron h1 {
    color: #fff;
    font-size: 48px;
    font-weight: bold;
      font-family:'Shift', sans-serif;
}
  
  
  .jumbotron p { 
    color:#fff;
    font-size:20px; 
    }

6. Jumbotron: Fonts
#2

Very vague lol what does the error message say for starters?

also why is <div class="jumbotron">..</div> in your css file?