What is CSS?

CSS, or Cascading Style Sheets, is a stylesheet language used to describe the presentation of a document written in HTML or XML.

CSS is needed to control the layout of web pages and to enhance their appearance by specifying styles like fonts, colors, and spacing.


Why CSS is Needed

  1. Separation of Content and Style: HTML is used for content and structure, while CSS is used for design and layout.
  2. Consistency: CSS ensures that the design is consistent across multiple pages.
  3. Efficiency: Changes in styles can be made in one place (the CSS file) and will be reflected throughout the website.
  4. Accessibility: Proper use of CSS can improve accessibility for users with disabilities.


Impact of CSS on Websites

  1. Visual Appeal: CSS allows for visually appealing designs, improving user experience.
  2. Performance: Efficient CSS can reduce load times and improve site performance.
  3. Responsiveness: CSS is essential for creating responsive designs that work on various devices and screen sizes.
  4. Maintainability: CSS helps in maintaining and updating the website's look without modifying the HTML structure.

Simple Style HTML Examples

Example 1: Basic Styling

<style>
body {
  font-family: Arial, sans-serif;
  background-color: #f0f0f0;
  color: #333;
}
h1 {
  color: #0066cc;
 }
p {
  font-size: 14px;
}
</style>

<h1>Welcome to My Website</h1>
<p>This is a simple paragraph styled with CSS.</p>


CSS is used to enhance the visual presentation of HTML content. By using different types of CSS (inline, internal, and external), you can manage the styles of your web pages effectively.