Cascading style sheets use “id” or “class”

Question

when styling specific html elements, i tend to always use the class attribute. the css code looks cleaner imo.

why do both exist which one should you use and when ?<

Answer 1

I mostly use ID to identify specific elements within elements already having a class assigned. That way I can identify easier what element gets which styling.

Not really sure if there is a real other difference between them, other than that you can only use an ID once in a page...