<style type="text/css">
	ins {
		color: #fff;
		background: #5cb85c;
		text-decoration: none;
		padding: 1px 2px;
	}
	del {
		color: #fff;
		background: #d9534f;
		text-decoration: none;
		padding: 1px 2px;
	}
</style>
<?php
require_once(APPPATH."libraries/HtmlDiff.php");
$diff = new HtmlDiff( $contentOri, $contentCompare );
$diff->build();
?>
<div class="row">
	<div class="col-md-6">
		<h5 class="text-center"><strong>Original</strong></h5>
		<hr>
		<?php echo $diff->getOldHtml(); ?>
	</div>
	<div class="col-md-6">
		<h5 class="text-center"><strong>Editing</strong></h5>
		<hr>
		<?php echo $diff->getDifference(); ?>
	</div>
</div>