Make import paths ES6-compatible

src/components/toast/toast.js

@@ -1,4 +1,4 @@
-import 'css!./toast';
+import './toast';
 
 function remove(elem) {
     setTimeout(function () {
@@ -21,7 +21,7 @@ export default function (options) {
     }
 
     const elem = document.createElement('div');
-    elem.classList.add('toast');
+    elem.classList.add('../toast/toast');
     elem.innerHTML = options.text;
 
     document.body.appendChild(elem);