Yes, I have renferenced leaflet.css but I have placed css inside a folder by name css-js
<!DOCTYPE html>
<html>
<head>
<meta name="viewport"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="css-js/leaflet.css">
<link rel="stylesheet" href="css-js/jquery.mobile-1.0.1.css">
<link rel="stylesheet" href="css-js/jquery.mobile.structure-1.0.1.css">
<link rel="stylesheet" href="css-js/location.css">
<script type="text/javascript" src="css-js/jquery-1.7.1.js"></script>
<script type="text/javascript" src="css-js/jquery.mobile-1.0.1.js"></script>
<script type="text/javascript" src="css-js/leaflet-src.js"></script>
</head>
<body>
<div id="map"></div>
</body>
<script type="text/javascript" src="css-js/location.js"></script>
</html>