For beginners in web development, it's essential to understand the basics of front-end and back-end development, as well as some fundamental technologies. Here's a brief overview:

1) Front-end Development:

HTML (Hypertext Markup Language): The backbone of web content, HTML structures web pages by defining elements such as headings, paragraphs, images, and links.

CSS (Cascading Style Sheets): CSS is used to style HTML elements, controlling the layout, colors, fonts, and overall presentation of a website.

JavaScript: A programming language that enables interactivity on the client side, allowing you to create dynamic and responsive web pages.

2) Back-end Development:

Server-Side Languages: Popular back-end languages include Python (Django, Flask), JavaScript (Node.js), Ruby (Ruby on Rails), and PHP. These languages handle server-side logic, database interactions, and application functionality.

Databases: Learn about databases like MySQL, PostgreSQL, or MongoDB, which store and manage the data for your web applications.

3) Version Control:
Git: Version control is crucial for tracking changes in your codebase. Git allows you to manage and collaborate on projects effectively.

4) Responsive Design:
Understand the principles of responsive design to ensure your websites look and function well on various devices and screen sizes.

5) Web Development Tools:
Familiarize yourself with development tools like text editors (e.g., Visual Studio Code), web browsers (e.g., Chrome Developer Tools), and frameworks (e.g., Bootstrap for front-end development).

6) Basic Command Line Usage:
Learn basic command line commands for tasks like navigating through directories, creating files, and running scripts.

7) Web Development Frameworks:
Explore frameworks like React, Angular, or Vue.js for front-end development and Django, Flask, or Express.js for back-end development.

8) HTTP and APIs:
Understand the basics of HTTP (Hypertext Transfer Protocol) and how to interact with APIs (Application Programming Interfaces) for data exchange between your web application and external services.

9) Security Best Practices:
Learn about common security practices to protect your web applications from common vulnerabilities, such as Cross-Site Scripting (XSS) and SQL injection.

10) Continuous Learning:
Web development is a dynamic field, so stay curious and be prepared to continually learn and adapt to new technologies and best practices.