Please, what is the link file and the current file when explaining rel tag

Question

I need more lights in this rel tag and some other things from CSS

Answer 1

Are you referring to the HTML <link> tag? surely this page can explain better.

https://www.w3docs.com/learn-html/html-link-tag.html

Answer 2

Bala Didi Nwaozor

Rel attribute defines the relationship between a linked resource and the current document

This docmentation by mozilla might be helpful to you

https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel