How to include Google Font in JSFiddle?

Webfonts must be included in the CSS quadrant, using @import:

@import url(//fonts.googleapis.com/css?family=Oswald:400,700,300);

You can use dataURL if you haven't got any url online(only available on local computer)

@font-face {
  font-family: 'us101';
  src: url(data:font/truetype;charset=utf-8;base64,AAEAAAASAQA...);
}