leaflet-eg.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Using Watercolor Map Tiles with Open Layers</title>
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
        integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY=" crossorigin="" />
    <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"
        integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo=" crossorigin=""></script>
    <style>
        #map {
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 100%;
        }
    </style>
</head>

<body>
    <div id="map"></div>
</body>
<script>
    var map = L.map('map').setView([0, 0], 2);
    L.tileLayer('https://watercolormaps.collection.cooperhewitt.org/tile/watercolor/{z}/{x}/{y}.jpg', {
        maxZoom: 19,
        attribution: '© OpenStreetMap'
    }).addTo(map);
</script>

</html>