Live Example

HTML

<html>
	<head>
		<title>My first three.js app</title>
		<style>
			body { margin: 0; position: fixed; }
			canvas { width: 100%; height: 100%; display: block; }
		</style>
	</head>
	<body>
		<script src="https://threejs.org/build/three.js"></script>
		<script>
			
      var scene = new THREE.Scene();
			var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
      camera.position.z = 5;
      
      
			var geometry = new THREE.PlaneBufferGeometry( 1, 1 );
			var material = new THREE.MeshStandardMaterial( { color: 0x32acd7, side: THREE.DoubleSide } );
			var plane = new THREE.Mesh( geometry, material );
			scene.add( plane );
      
      
      var ambient = new THREE.AmbientLight( 0xffffff, 0.3 );
      scene.add( ambient );
      
      var spotLight = new THREE.SpotLight( 0xac8c6c, 2.4);
      spotLight.position.set( -10, 18, 30 );
      scene.add( spotLight );
      
      var renderer = new THREE.WebGLRenderer( { antialias: true } );
			renderer.setSize( window.innerWidth, window.innerHeight );
      document.body.appendChild( renderer.domElement );

			var animate = function () {
				requestAnimationFrame( animate );
        
        plane.rotation.y += 0.01;

				renderer.render( scene, camera );
			};

			animate();
		</script>
	</body>
</html>