title: JQuery slideup and slidedown is not smooth enough
body: <p>I am implementing a slide dropdown and i am using this code</p>
  
  <pre><code>$(document).ready(function(){
      $('.drop').click(function(){
          var $next = $(this).parent().next('li.drop_down');
          if($next.is(':visible')) {
              $next.slideUp();
          } else {
              $next.slideDown();
          }
      });
  });
  </code></pre>
  
  <p>but the client claims that it is not smooth enough. He wants to expand really smooth, so is there a way to make it smoother </p>