Core React Concepts

Styling in React

Explore practical styling approaches in React including CSS modules, utility CSS, and CSS-in-JS.

Styling options

ApproachBest for
Plain CSSSimple projects
CSS ModulesScoped component styles
Utility CSS (Tailwind)Fast UI composition
CSS-in-JSDynamic styling needs

CSS Modules example

tsx
import styles from './Button.module.css';

export function Button() {
  return <button className={styles.primary}>Save</button>;
}

Conditional classes

tsx
const cls = isActive ? 'btn btn-active' : 'btn';
return <button className={cls}>Click</button>;

Styling best practices

  • Pick one primary strategy team-wide
  • Keep design tokens centralized
  • Avoid excessive inline styles

Next, we begin Hooks essentials with useState.