Changed the file structure for ease of handling from tsd and added several utility classes.

threejs/three-css3drenderer.d.ts

@@ -0,0 +1,32 @@
+// Type definitions for CSS3DRenderer.js
+// Project: https://github.com/mrdoob/three.js/blob/master/examples/js/renderers/CSS3DRenderer.js
+// Definitions by: Satoru Kimura <https://github.com/gyohk>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+// This renderer does not work in IE. Can be found here for more information.
+// https://github.com/mrdoob/three.js/issues/4783
+
+/// <reference path="./three.d.ts" />
+
+declare module THREE {
+    class CSS3DObject extends Object3D {
+        constructor(element: any);
+
+        element: any;
+    }
+
+    class CSS3DSprite extends CSS3DObject {
+        constructor(element: any);
+
+    }
+
+
+    class CSS3DRenderer {
+        constructor();
+
+        domElement:HTMLElement;
+
+        setSize(width: number, height: number): void;
+        render(scene: THREE.Scene, camera: THREE.Camera): void;
+    }
+}