title: Navigation menu animate toggle
body: <p>I have a navigation bar that I'm trying to toggle.
  The first animation works, however I can't work out how to slide the menu back off screen.</p>
  
  <p>Here's my code:</p>
  
  <pre><code>// SHOW NAVIGATION BAR
  $("#menu-btn").click(function() {
      $("nav").animate({
          left: '270px'
      });
      $("#menu-btn").removeClass().addClass("#menu-btn-active");
  });
  
  // HIDE NAVIGATION BAR
  $("#menu-btn-active").click(function() {
      $("nav").animate({
          left: '-270px'
      });
      $("#menu-btn-active").removeClass().addClass("#menu-btn");
  });
  </code></pre>
  
  <p>Any help is appreciated!</p>