Which among the 3 css types is fastest or preferred?

Web Development
#1

Which among the 3 css types is fastest or preferred?

#2

It depends on your work if you’re learning html tags and attributes inline css should be preferred where as if you’re making a landing page or similar kind of a single page you can use internal css as it will be very complex to style each and every attribute and tags that you use in your webpage. For a capstone like project external css will be best practice as it will help you to make your code scalable and clean.