Can font-size be set by unicode range?

I'd like to change the size of the symbols but they cannot be wrapped in additional HTML tags. Is there a way to target a unicode range when setting font-size? Such as,

span.name[...unicode range...] { font-size: 20px; }

Or can they be loaded using @font-face (as mentioned here https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules/@font-face/unicode-range) and then set a size for the font-face?

Thank you.