jQuery addClass() method

The jQuery addClass() method adds the specified class(es) to each of the set of matched elements.

Source Code

<!DOCTYPE html>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
 	 .highlight { border : 2px solid #1E8CBE; }
<div class="div1">Div 1</div>
<div>Div 2</div>

<button>Click Here</button>

jQuery("button").click(function () {


Following example finds the element with the class “div1” and adds highlight class on it.

Div 1
Div 2


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