Web Development is one of the best and most Good career opportunities nowadays. If you want to become a Web developer, as a beginner you will learn the basics of HTML, CSS, Javascript, React, Git&Github. Below that mentioned some best websites to learn this, You can access those websites and learn web development easily.
Best websites to learn Web Development
W3Schools
html.com
codecademy
css-tricks.com
MDN Web Docs
Udemy
Here mentioned all websites are my opinion. If anyone know any other best websites, comment below.