---
layout: tutorial_frame
title: Mobile tutorial
css: "body {
		padding: 0;
		margin: 0;
	}
	html, body, #map {
		height: 100vh;
		width: 100vw;
	}"
---
<script>
	var map = L.map('map').fitWorld();

	L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpejY4NXVycTA2emYycXBndHRqcmZ3N3gifQ.rJcFIG214AriISLbB6B5aw', {
		maxZoom: 18,
		attribution: 'Map data &copy; <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, ' +
			'<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, ' +
			'Imagery © <a href="http://mapbox.com">Mapbox</a>',
		id: 'mapbox.streets'
	}).addTo(map);

	function onLocationFound(e) {
		var radius = e.accuracy / 2;

		L.marker(e.latlng).addTo(map)
			.bindPopup("You are within " + radius + " meters from this point").openPopup();

		L.circle(e.latlng, radius).addTo(map);
	}

	function onLocationError(e) {
		alert(e.message);
	}

	map.on('locationfound', onLocationFound);
	map.on('locationerror', onLocationError);

	map.locate({setView: true, maxZoom: 16});
</script>