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<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-2.1.4.min.js"></script>
<script src="../jquery.once.js"></script>
</head>
<body>
<h1>jQuery Once</h1>
<p>This is some text, which should stay green.</p>
<script>
// Change the color of the text to green.
$('p').once('changecolor').css('color', 'green');
// Attempt to change the color again.
$('p').once('changecolor').css('color', 'red');
// Now change the background color.
$('p').once('changebackground').css('background-color', 'black');
// Change it again.
$('p').once('changebackground').css('background-color', 'yellow');
</script>
</body>
</html>
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