fixed bug

Author: FezVrasta

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-resize-aware",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "description": "A resize aware component used to detect sizes changes on your components",
   "main": "dist/resizeAware.js",
   "scripts": {

src/index.js

@@ -10,7 +10,7 @@ import { Component } from 'react'
 
 export default class ResizeAware extends Component {
   render() {
-    let rootStyle = this.props.style
+    let rootStyle = this.props.style || {}
     if (rootStyle.position === 'initial') {
       rootStyle.position = 'relative'
     }