title: Media query not working for (min-width:321px)
body: <p>I'm building a responsive design and everything is fine apart from I can't seem to target iPhone 3g users.</p>
  
  <p>I've added the following media queries but the first one (max-width:320px) doesn't seem to work  </p>
  
  <pre><code>@media screen and (max-width: 320px) {
  // STYLES GO HERE
  }
  
  @media screen and (min-width: 321px) and (max-width: 640px) {
  //STYLES GO HERE
  }
  </code></pre>
  
  <p>Am I doing something wrong?</p>