1. HTML (Hypertext Markup Language):
HTML is the backbone of web development, providing the structure and content for web pages. It is a markup language that uses tags to define elements such as headings, paragraphs, images, links, and lists. HTML documents are composed of nested elements, forming a hierarchical structure known as the Document Object Model (DOM).
- Importance of HTML: HTML is the foundation upon which websites are built. It structures the content and allows browsers to interpret and display web pages correctly. Understanding HTML is essential for creating semantically meaningful and accessible websites.
- Basic HTML Structure: HTML documents begin with the
<!DOCTYPE html>declaration, followed by the
<html>element that contains the
<head>section includes metadata, while the
<body>section holds the visible content.
- Common HTML Tags: Some frequently used HTML tags include
<ol>for unordered and ordered lists, and many more.
2. CSS (Cascading Style Sheets):
CSS is a styling language used to control the presentation and layout of HTML elements. It allows web developers to apply colors, fonts, spacing, and positioning to create visually appealing and consistent designs across web pages.
- Importance of CSS: CSS plays a crucial role in separating the content and layout of a website. By using CSS, developers can maintain a clear distinction between the structure (HTML) and the presentation (CSS), making it easier to update and modify the appearance of a site.
- CSS Syntax: CSS works with a selector and declaration block structure. Selectors target HTML elements, while the declaration block contains styling rules in the form of property-value pairs.
- Basic CSS Properties: Some essential CSS properties include
colorfor text color,
font-familyfor font selection,
displayfor layout control, and
positionfor element positioning.