On: Let’s fix font size

[runarberg]

An example of a side note which should be smaller font-size and should be relatively narrow (on a maximized desktop screen):

    aside {
      font-size: 0.8em;
      max-inline-size: 30ch;
    }

This will fit approximately 30 characters at most on your aside and the font size will be 80% of the font size of the parent container (which is probably an `<article>` or a `<section>`).