To become a web developer, you’ll want to focus on several key areas. Here’s a roadmap:

1. HTML & CSS: The building blocks of web development. Learn how to structure a webpage with HTML and style it with CSS.
2. JavaScript: A core language for making your web pages interactive. Understanding JavaScript fundamentals is crucial.
3. Responsive Design: Learn how to create websites that look good on all devices. CSS frameworks like Bootstrap can be handy here.
4. Version Control/Git: Get familiar with Git and GitHub for version control and collaboration on projects.
5. Front-End Libraries & Frameworks: Explore libraries and frameworks like React.js, Vue.js, or Angular to build dynamic web applications.
6. Backend Basics: Understand how server-side development works with languages and frameworks such as Node.js, Express.js, Django, or Ruby on Rails.
7. Databases: Learn about databases and how to interact with them using SQL or NoSQL solutions.
8. APIs: Get comfortable with RESTful services and APIs to integrate different parts of your applications.
9. Deployment: Learn how to deploy your applications using services like Heroku, Netlify, or AWS.
10. Problem Solving & Algorithms: Hone your problem-solving skills and understand common algorithms and data structures.