@font-face {
font-family: GraublauWeb;
src: url("path-to-the-font-file/GraublauWeb.otf") format("opentype");
}

@font-face {
font-family: GraublauWeb;
font-weight: bold;
src: url("path-to-the-font-file/GraublauWebBold.otf") format("opentype");
}