JSFiddle - React, Tailwind, and code Playground

HTML

<!doctype html>
<html lang="en">
  <head>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/openlayers/4.6.4/ol.css" type="text/css">
    <style>
      .map {
        height: 400px;
        width: 100%;
      }
    </style>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/openlayers/4.6.4/ol.js"></script>
    <title>OpenLayers example</title>
  </head>
  <body>
    <h2>My Map</h2>
    <div id="map" class="map"></div>
    <script type="text/javascript">
      var map = new ol.Map({
        target: 'map',
        layers: [
          new ol.layer.Tile({
            source: new ol.source.OSM()
          })
        ],
        view: new ol.View({
          center: ol.proj.fromLonLat([37.41, 8.82]),
          zoom: 5
        })
      });
      
      var lonlat = [33.8, 8.4];
      var location2 = [37.5, 8.0];
      
      var linie2style = [
				// linestring
				new ol.style.Style({
				  stroke: new ol.style.Stroke({
					color: '#d12710',
					width: 2
				  })
				})
			  ];
			  			
			var linie2 = new ol.layer.Vector({
					source: new ol.source.Vector({
					features: [new ol.Feature({
						geometry: new ol.geom.LineString(lonlat, location2),
						name: 'Line',
					})]
				})
			});
			
			linie2.setStyle(linie2style);
			map.addLayer(linie2);
      
    </script>
  </body>
</html>