You may try this code to solve your issue:
<html>
<head>
<meta charset="utf-8" />
<title>JavaScript String fontcolor() Method</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery- ui.css" />
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<link rel="stylesheet" href="/resources/demos/style.css" />
<script>
$(function() {
$( "#dialog-message" ).dialog({
modal: true,
buttons: {
Ok: function() {
$( this ).dialog( "close" );
}
}});
});
</script>
</head>
<body>
<div id="dialog-message" title="My Dialog Alternative">
<p style='color:red'> Hello world </p>
</div>
</body>
</html>
