I must not neglect the font

Typefaces (or fonts) are also a key element of a website’s design. Opt for a sans-serif font, as these are more fluid and easier to read on the web.

2 rules:

-          Use 3 fonts maximum and organise them: one typeface can be exclusively reserved for first level headers for example.

-          The size of your text must be sufficiently clear to read (12 points minimum in arial for example).

Tip: download Google Fonts to be certain to have the rights to use them:  https://fonts.google.com/