Add custom icons with Markers | TrackAsia GL JS Docs

Use Marker to add custom icons to your map.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Add custom icons with Markers</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://unpkg.com/trackasia-gl@1.0.5/dist/trackasia-gl.js"></script>
<link href="https://unpkg.com/trackasia-gl@1.0.5/dist/trackasia-gl.css" rel="stylesheet" />
<style>
	body { margin: 0; padding: 0; }
	#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<style>
.marker {
display: block;
border: none;
border-radius: 50%;
cursor: pointer;
padding: 0;
}
</style>

<div id="map"></div>

<script>
var geojson = {
'type': 'FeatureCollection',
'features': [
{
'type': 'Feature',
'properties': {
'message': 'Foo',
'iconSize': [60, 60]
},
'geometry': {
'type': 'Point',
'coordinates': [99.891196,7.680506]
}
},
{
'type': 'Feature',
'properties': {
'message': 'Bar',
'iconSize': [50, 50]
},
'geometry': {
'type': 'Point',
'coordinates': [103.017138,13.081618]
}
},
{
'type': 'Feature',
'properties': {
'message': 'Baz',
'iconSize': [40, 40]
},
'geometry': {
'type': 'Point',
'coordinates': [109.257659,12.653202]
}
}
]
};

var map = new trackasiagl.Map({
container: 'map',
style: 'https://maps.track-asia.com/styles/v1/streets.json?key=public_key',
center: {"lat":10.762622,"lng":106.660172},
zoom: 4.9
});

// add markers to map
geojson.features.forEach(function (marker) {
// create a DOM element for the marker
var el = document.createElement('div');
el.className = 'marker';
el.style.backgroundImage =
'url(https://placekitten.com/g/' +
marker.properties.iconSize.join('/') +
'/)';
el.style.width = marker.properties.iconSize[0] + 'px';
el.style.height = marker.properties.iconSize[1] + 'px';

el.addEventListener('click', function () {
window.alert(marker.properties.message);
});

// add marker to map
new trackasiagl.Marker(el)
.setLngLat(marker.geometry.coordinates)
.addTo(map);
});
</script>
 
</body>
</html>