@font-face {
  font-family: 'Swiss721BT-Extended';
  src: url('s_ext.woff2') format('woff2'), url('s_ext.woff') format('woff');
}
@font-face {
  font-family: 'Swiss721BT-Thin';
  src: url('s_thin.woff2') format('woff2'), url('s_thin.woff') format('woff');
}
@font-face {
  font-family: 'Swiss721BT-BoldExtended';
  src: url('s_bold_ext.woff2') format('woff2'), url('s_bold_ext.woff') format('woff');
}