It always shows me the same mistake, but i have no idea!


#1

If you guys could tell me what this means:

Oops, try again.
Add a div with the learn-more class, like this: <div class="learn-more">..</div>.

<!DOCTYPE html>
<html>
  <body>
  <div class="nav">
  <div class="container">
    <ul>
      <li>Leif Sieben</li>
      <li>Browse</li>
    </ul>
    
    <ul>
      <li>Sign Up</li>
      <li>Log in</li>
      <li>Help</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>
      <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><a href="#">Learn more about hosting</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 more about Airbnb<p>
      </div>
     
  </body>
</html>

#2

Nope i found it, i accidentaly pressed reset. Please excuse me guys to bother you. Love you!