2024年12月20日金曜日

What for HTML or CSS in WEB site programming?

 HTML and CSS: The Building Blocks of the Web

HTML and CSS are the fundamental languages used to create and style websites.1

HTML (HyperText Markup Language):

  • The Structure: HTML provides the structure of a webpage, defining the content and its hierarchy.2
  • Elements and Tags: HTML uses elements, which are enclosed in tags, to represent different parts of a webpage, such as headings, paragraphs, images, links, and lists.3
  • Basic Structure:
    HTML
    <!DOCTYPE html>
    <html>
    <head>
        <title>My Website</title>
    </head>
    <body>
        <h1>Welcome to My Website</h1>
        <p>This is a paragraph.</p>
    </body>
    </html>
    

CSS (Cascading Style Sheets):

  • The Style: CSS is used to style the HTML elements, controlling their appearance, layout, and formatting.4
  • Properties and Values: CSS properties (like color, font-size, and margin) are applied to HTML elements using selectors to define how they should be displayed.5
  • Example:
    CSS
    h1 {
        color: blue;
        font-size: 36px;
        text-align: center;
    }
    
    p {
        font-family: Arial, sans-serif;
        font-size: 16px;
    }
    

Why Use HTML and CSS?

  • Flexibility: They offer a high degree of flexibility in creating diverse website designs.6
  • Simplicity: Both are relatively easy to learn and use.
  • Cross-Platform Compatibility: HTML and CSS work across different browsers and devices.7
  • Open Standards: They are open standards, meaning they are freely available and widely supported.8

In essence, HTML provides the content, and CSS defines the presentation of that content.9 Together, they form the foundation of web development and are essential for creating visually appealing and functional websites.10

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