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CSS in React

  • This lesson introduces CSS in React and explains how to style components using different CSS techniques.

  • Topic Overview

    Styling in React can be done in multiple ways, depending on project size, team preference, and complexity.
     React does not force one styling method, giving developers full flexibility.

    CSS in React

    Global CSS

    Global CSS is normal CSS applied to the entire application.

    Example:

/* index.css */
body {
  margin: 0;
  font-family: Arial;
}

import "./index.css";

  • Characteristics:

    • Applied to all components

    • Easy for small projects

    • Can cause style conflicts

    👉 Best for:

    • Reset styles

    • Global themes

    • Common layout styles

    Component-Level CSS

    Component-level CSS is scoped logically by importing CSS into a component.

    Example:

import "./Button.css";

function Button() {
  return <button className="btn">Click</button>;
}
  • Still global in nature, but organized per component.
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