[@silverclaw Participant 3 years, 7 months ago]

If your theme uses body_class(); function you can use generated CSS class based on page/post/category/whatewer to apply some specific CSS rules like different fonts, colors etc.
For example:

.page-id-2 {font-family: Lato}
.postid-1 {font-family: Lato}

and so on.
You can find more info in wordpress documentation