title: how to change button color with jQuery on click
body: <p>I am trying to change a button colour when clicked using jQuery. </p>
  
  <p>I want the button to change from blue to grey when clicked. </p>
  
  <p>so far I have this code </p>
  
  <p>See <a href="http://jsfiddle.net/dVPrq/" rel="nofollow">fiddle</a></p>
  
  <pre><code>$(".vote-number").hide();
  $(".vote-btn").click(function(){
      $(this).next('.vote-number').finish().show().fadeOut(5000);
  });
  </code></pre>