text: import React from 'react';
  import { Switch, Route } from 'react-router-dom';
  import styled from 'styled-components';
  import Header from 'components/Header';
  import HomePage from 'containers/HomePage/Loadable';
  import StringsPage from 'containers/StringsPage/Loadable';
  import NotFoundPage from 'containers/NotFoundPage/Loadable';
  
  const AppWrapper = styled.div`
    max-width: calc(768px + 16px * 2);
    margin: 0 auto;
    display: flex;
    min-height: 100%;
    padding: 0 16px;
    flex-direction: column;
  `;
  
  export default function App() {
    return (
      <AppWrapper>
        <Header />
        <Switch>
          <Route exact path="/" component={HomePage} />
          <Route exact path="/strings" component={StringsPage} />
          <Route component={NotFoundPage} />
        </Switch>
      </AppWrapper>
    );
  }
  