removeClass( [class], [duration] )

Removes the specified class from the set of matched elements with an optional transition.

Arguments:

class (Optional)	String
One CSS class to remove from the elements.
duration (Optional)	String, Number
A string representing one of the three predefined speeds ("slow", "normal", or "fast") or the number of milliseconds to run the animation (e.g. 1000).

Examples:

Demo
View Source

Remove the class 'blue' from the matched elements with a 1-second transition.

$("p").removeClass("blue", 1000);

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
                    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
  
  <script src="http://ui.jquery.com/latest/ui/effects.core.js"></script>

  <script>
  $(document).ready(function(){
    $("p").removeClass("blue", 1000);
  });
  </script>
  <style>
  p { margin: 4px; font-size:16px; font-weight:bolder; }
  .blue { color:blue; }
  .under { text-decoration:underline; }
  .highlight { background:yellow; }
  </style>
</head>
<body>
  <p class="blue under">Hello</p>
  <p class="blue under highlight">and</p>
  <p class="blue under">then</p>
  <p class="blue under">Goodbye</p>
</body>
</html>

Name	Type