internal static void AddFontFace(StringBuilder sb, string name, string weight, string style, string path) { if (path == null) return; sb.AppendLineFormat("@font-face {{font-family:'{0}'; font-weight:{1}; font-style:{2}; src:url({3}) format('{4}');}}", name, weight, style, Path.GetFileName(path), Path.GetExtension(path) == ".woff" ? "woff" : "opentype"); }