问React bulma组件导入不起作用

EN

import React from 'react';
import './App.scss';
import Section from 'react-bulma-components/lib/components/section';

function App() {
  return (
    <Section>
      <div class="container">
        <h1 class="title">
          Hello World
      </h1>
        <p class="subtitle">
          My first website with <strong>Bulma</strong>!
      </p>
      </div>
    </Section>
  );
}

export default App;

@import 'react-bulma-components/src/index.sass';

{
  "name": "just-trying",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "node-sass": "^4.13.0",
    "react": "^16.11.0",
    "react-bulma-components": "^3.1.3",
    "react-dom": "^16.11.0",
    "react-router-dom": "^5.1.2",
    "react-scripts": "3.2.0"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "devDependencies": {
    "sass-loader": "^8.0.0"
  }
}