create HomeContainer, coz add overflow:hidden

 import React from "react";
+import styled from "styled-components";
 import MenuBar from "../Components/MenuList/MenuBar";
 import SubMenuBar from "../Components/SubMenuList/SubMenuBar";
 import MainScreen from "../Components/Main/MainScreen";
 
+const HomeContainer = styled.div`
+  width: 100%;
+  display: flex;
+  flex-direction: row;
+  overflow: hidden;
+`;
+
 export default () => {
   return (
     <>
-      <MenuBar />
-      <SubMenuBar />
-      <MainScreen />
+      <HomeContainer>
+        <MenuBar />
+        <SubMenuBar />
+        <MainScreen />
+      </HomeContainer>
     </>
   );
 };