Hi,
you could allow listed extensions in the
Site Manager - Settings - Files - Upload extensions. Then the system should allow you to upload font files.
But if you need to link file in the css definition, you could upload it directly (using ftp for example) to the App_Themes directory for example:
@font-face {
font-family: Delicious;
font-weight: bold;
src: url('../App_Themes/Delicious-Bold.otf');
}
Best regards,
Ivana Tomanickova