diff --git a/src/components/SonComponent.js b/src/components/SonComponent.js
index 04b2d64..941a9ff 100644
--- a/src/components/SonComponent.js
+++ b/src/components/SonComponent.js
@@ -6,7 +6,7 @@ export default class SonComponent extends React.PureComponent {
     state = {
         msg: "SonComponent Msg",
         showChildrenBorder: true,
-        childrenClass: [SonComponentCss.children]
+        childrenClass: []
     }
 
     // constructor(props) {
@@ -14,6 +14,10 @@ export default class SonComponent extends React.PureComponent {
     //     console.log(props)
     // }
 
+    componentDidMount() {
+        this.changeChildrenClass()
+    }
+
     switchChildrenBorder = () => {
         this.setState({
             ...this.state,
@@ -27,7 +31,6 @@ export default class SonComponent extends React.PureComponent {
         let childrenClass = []
         if (this.state.showChildrenBorder) {
             childrenClass = [SonComponentCss.children]
-
         }
 
         this.setState({