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Functional demo:

addClass

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Run Effect

This demo adds a class which animates: text-indent, letter-spacing, width, height, padding, margin, and font-size.

Overview

addClass( class, [duration] )

Adds the specified class to each of the set of matched elements with an optional transition between the states.

Dependencies

  • Effects Core

Example

Adds the class 'selected' to the matched elements with a one second transition.

$("p").click(function () {
      $(this).addClass("selected", 1000);
    });

<!DOCTYPE html>
<html>
<head>
  <link type="text/css" href="http://jqueryui.com/latest/themes/base/jquery.ui.all.css" rel="stylesheet" />
  <script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.4.2.js"></script>
  <script src="http://ui.jquery.com/latest/ui/effects.core.js"></script>
<style type="text/css">
  p { cursor: pointer; font-size: 1.2em; }
  .selected { color:red; }
</style>
  <script type="text/javascript">
  $( document ).ready( function() {
    $("p").click(function () {
      $(this).addClass("selected", 1000);
    });
  } );
  </script>
</head>
<body style="font-size:62.5%;">
  <p>Click me to add a 'selected' class.</p>
<p>Click me to add a 'selected' class.</p>
<p>Click me to add a 'selected' class.</p>
</body>
</html>

Arguments

  • class

    Type:
    String

    One CSS class to add to the elements.

  • duration

    Type:
    String, Number
    Optional

    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).