What is the use of HTML and CSS in web development?

HyperText Markup Language (HTML) and Cascading Style Sheets (CSS) are two fundamental technologies used in web development. They serve distinct but complementary purposes:
1. HTML (HyperText Markup Language): HTML is the backbone of web pages and provides the structure and content of a webpage. It consists of a series of elements (tags) that are used to define the different parts of a web page, such as headings, paragraphs, images, links, tables, forms, and more. The primary uses of HTML in web development are:
Content structuring: HTML allows developers to organize the content of a webpage into logical sections, making it easier for search engines, screen readers, and other technologies to understand the page's structure.
Semantic markup: HTML5 introduces semantic elements like , , , , , etc., which provide additional meaning to the content, making it more accessible and SEO-friendly.
Hyperlinks: HTML enables the creation of hyperlinks, allowing users to navigate between different pages on the web by clicking on links.
Forms: HTML includes form elements (e.g., , , , etc.) to collect user data, such as login credentials, contact information, or survey responses.
2.CSS (Cascading Style Sheets): CSS is used to control the presentation and layout of web pages, separating the content from its appearance. It allows developers to define styles, colors, fonts, spacing, and positioning of HTML elements. The main uses of CSS in web development are:
Styling: CSS lets developers define how various HTML elements should look, making it possible to apply consistent styles across multiple pages of a website.
Layout control: CSS provides mechanisms to arrange elements in specific layouts, such as setting up responsive designs for different screen sizes and devices.
Adaptability and responsiveness: With CSS, developers can create responsive designs that adjust automatically to various screen sizes, making websites mobile-friendly and accessible on different devices.
Maintenance and scalability: By separating the content from its presentation, CSS allows developers to update the appearance of an entire website by modifying just a few CSS rules, making maintenance and scalability more manageable.
In summary, HTML and CSS work together to create visually appealing, well-structured, and accessible web pages, making them essential tools in modern web development.