Why not max/min-font-size? & extend them to other properties of sizes

Now, we have available units based on the size of the viewport.
These units can declare on the size of the texts.
CSS does not have a way to limit the computed maximum or minimum value of
them.

I think you should consider the convenience of including the css properties:
max-font-size
min-font-size
onto the "Css Font module" document.

PLUS:
Consider adding the properties 'max-property' / 'min-property' to all those
that may be declared based on the percentage viewport, as 'padding',
'margin', 'line-height'...

Kseso