title: Background-image not working in CSS3
body: <p>Background-image isn't working in my CSS sheet. I did a Udemy course and everything in that course was working fine, but now that I'm attempting to create my own site using the same method it's not working. It's the exact same method. </p>
  
  <p>And here is the CSS Code: </p>
  
  <pre><code>.header 
  {
       background-image: url('img/battle_for_azeroth.jpg');
       background-size: cover;
       background-position: center;
       height: 100vh;
       background-attachment: fixed; 
  }
  </code></pre>
  
  <p>the image url is probably wrong,thats the problem</p>