<html>
<head>
<meta charset="UTF-8">
<title>test</title>
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.3.0/dist/leaflet.css" />
<script src="https://unpkg.com/leaflet@1.3.0/dist/leaflet.js"></script>
<script>
function init() {
var map = L.map('mapcontainer');
map.setView([-1.091176, 37.011073], 15,);
L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png').addTo(map);
}
</script>
</head>
<body onload="init()">
<div id="mapcontainer" style="width:600px;height:600px"></div>
</body>
</html>