{React.cloneElement(children, { ref: this.menuChildrenRef })}
diff --git a/src/index.js b/src/index.js
index 449489c8a..e35f006d6 100755
--- a/src/index.js
+++ b/src/index.js
@@ -6,5 +6,6 @@ import App from './app';
const container = document.getElementById('app');
Modal.container = container;
+Modal.className = 'modal-container';
ReactDOM.render(
, container);