HTML is the programming language that defines the structure of a web page, while CSS, or cascading style sheets, defines its style. 

Learning HTML & CSS is a crucial first step for anyone aspiring to become a professional web developer, as it provides fundamental transferable skills necessary for learning more complex languages. Common professional roles that utilize HTML & CSS include Web Developers, Visual Designers, and Front End Web Developers.

OBJECTIVES:-

Learning HTML and CSS can be beneficial for many reasons, including:

• Web development:- HTML and CSS are the foundation of web development, and are used to create and style websites.
• Start a business:- If you're starting a business, you can use HTML and CSS to create your own website and stand out from the crowd.
• Learn other coding  languages:-Learning HTML and CSS can make it easier to learn more complex coding languages.
• Earn extra income:-You can use HTML and CSS to earn extra income by building websites for others.
• Understand how the web works:-Learning HTML and CSS can help you understand how web pages work and how to design them.
• Transferable skills:-HTML and CSS teach you fundamental skills that are transferable to other coding languages, such as how to compile code and coding syntax.
• Impressive skill:-Learning HTML and CSS can be a valuable and impressive skill to add to your resume.