css - Secondary development adds new font icons. How to add some new icons while retaining the original ones?

Question

Because it is a secondary development, the icon library account of the previous person is not retained, but most of the icons need to be retained. Only a few icons need to be updated, so the previous files cannot be overwritten. . .

How can I add some new icons while retaining the original ones?

Answer 1

Package the new icon into a font file and import it, and create a new font-family reference