What method of CSS isolation do you prefer?

I prefer to use CSS modules for component-oriented development.

Advantages of CSS modules:

• Local scope: Each CSS module file creates unique classes, avoiding style conflicts between components.
• No side effects: Changes in the styles of one component do not affect others.
• Readability and maintainability: It's clear which styles are applied to a specific component.
• Integration with JavaScript: Class names are imported as objects, which is convenient for dynamic style application.
• Dead code: Thanks to local scope, unused styles can be easily identified and removed.

// Component.jsx
import styles from './Component.module.css';

function Component() {
  return (
    <div className={styles.container}>
      <p className={styles.text}>Hello!</p>
    </div>
  );
}

export default Component;

/* Component.module.css */
.container {
  border: 1px solid blue;
  padding: 10px;
}

.text {
  color: red;
  font-size: 16px;
}

Other methods like CSS-in-JS or BEM also have their advantages, but for most projects, CSS modules provide an optimal balance between isolation, performance, and development convenience.