postcss-font-base64/example/before.css

this postcss plugin will export a font face defined by base64 encoded string

@font-face {
    font-family: Scrabble;
    src:
        url("fonts/fakefont.eot?#iefix") format("embedded-opentype"),
        url("fonts/fakefont.woff") format("woff"),
        url("fonts/fakefont.ttf") format("truetype");
    font-weight: normal;
    font-style: normal;
}