Then I guess it's the same as with any other font, at most you'd have to specify the font-variant in the @font-face. You need to define the font in the CSS:
Code:
@font-face{
font-family: "My smallcaps font";
font-variant: small-caps;
src: url("../relative/path/to/the/font.ttf") format("truetype");
}
body {
font-family: "My smallcaps font";
}
Then you have to include the font.ttf file in the epub and add the corresponding line to the <manifest>.