@font-face {
  font-family: 'Source Sans Pro';
  font-style: normal;
  font-weight: 300;
  src: local('Source Sans Pro Light'), local('SourceSansPro-Light'),
       url(SourceSansPro-Light.ttf) format('truetype');
}
@font-face {
  font-family: 'Source Sans Pro';
  font-style: normal;
  font-weight: 400;
  src: local('Source Sans Pro Regular'), 
    local('SourceSansPro-Regular'),
    url(SourceSansPro-Regular.ttf) format('truetype');
}
@font-face {
  font-family: 'Source Sans Pro';
  font-style: normal;
  font-weight: 700;
  src: local('Source Sans Pro Bold'),
    local('SourceSansPro-Bold'),
    url(SourceSansPro-Bold.ttf) format('truetype');
}