JSFiddle - React, Tailwind, and code Playground

HTML

<script src="&lt;link rel=&quot;shortcut icon&quot; type=&quot;image/x-icon&quot; href=&quot;docs/images/favicon.ico&quot; /&gt;"></script>
<link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css">
<script src="https://unpkg.com/[email protected]/dist/leaflet.js"></script>
<div id="mapid" style="width: 600px; height: 400px;"></div>

JavaScript

var mymap = L.map('mapid').setView([51.505, -0.09], 13);

	L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpandmbXliNDBjZWd2M2x6bDk3c2ZtOTkifQ._QA7i5Mpkd_m30IGElHziw', {
		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(mymap);


	function onMapLoad() {
		alert("Map successfully loaded")
	}

	mymap.on('load', onMapLoad);