I imported a font from google fonts, do I have to write it in CSS like this font-family: 'Lato', sans-serif; or can I just type the name without the ’ … ', like this: font-family: Lato, sans-serif;
For what I remember, the apostrophes are mandatory only if the name of the font has spaces in it.
In all the other cases, both with and without the apostrophes should be the same.
Font names in CSS are strings, and should be quoted, but you can miss the quotes off if the font name is a valid identifier .
sans-serif and the other four generic font types (serif, monospace, cursive and fantasy) are not font names, they’re keywords: instructions to the computer to use whatever the operating system uses as default for that type. They cannot be quoted, otherwise the browser will literally look for a font called “sans-serif”, and it’s extremely unlikely that is going to be something that exists