Which to learn.HTML or HTML5 and CSS or CSS3

Answer 1

CSS and CSS3 are basically the same while CSS3 have a slightly of more options and improvements
Its always good to know the newest one so go with CSS3 and HTML5 (although they are still the same as CSS and HTML)

Answer 2

go for html5 and css3 as it has much more added features that can help you build great webpages....

Answer 3

HTML5 and CSS3. Most people use these together as they provide more tools than their predecessors.

Answer 4

Yes definetley

Answer 5

HTML5 is the latest version of HTML as of writing this comment.
CSS3 is also the latest version of CSS as of now.