React.js包含css

const styles = {
  container: {
    backgroundColor: 'red',
    padding: '10px',
    color: 'white',
  },
};

function MyComponent() {
  return <div style={styles.container}>Hello, React!</div>;
}

function MyComponent() {
  return (
    <div>
      <style>
        {`
          .container {
            background-color: red;
            padding: 10px;
            color: white;
          }
        `}
      </style>
      <div className="container">Hello, React!</div>
    </div>
  );
}

import './MyComponent.css';

function MyComponent() {
  return <div className="container">Hello, React!</div>;
}

.container {
  background-color: red;
  padding: 10px;
  color: white;
}