You can try this for popup on google marker:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title> - jsFiddle demo</title>
<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js'></script>
<link rel="stylesheet" type="text/css" href="/css/normalize.css">
<script type="text/javascript" src="http://code.jquery.com/ui/1.8.18/jquery-ui.min.js"></script>
<link rel="stylesheet" type="text/css" href="/css/result-light.css">
<script type='text/javascript' src="http://maps.google.com/maps/api/js?sensor=false&.js"></script>
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1/themes/ui-lightness/jquery-ui.css">
<style type='text/css'>
#map_canvas{width:400px;height:400px;}
</style>
<script type='text/javascript'>//<![CDATA[
</script>
</head>
<body>
<div id="map_canvas"></div>
</body>
</html>