@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 400;
  src: url('OpenSans-Regular-webfont.eot'); /* Old IE */
  src:
    url('OpenSans-Regular-webfont.eot?#iefix') format('embedded-opentype'),
    url('OpenSans-Regular-webfont.woff') format('woff'),
    url('OpenSans-Regular-webfont.ttf') format('truetype'),
    url('OpenSans-Regular-webfont.svg#open_sansregular') format('svg');
}

@font-face {
  font-family: 'Open Sans';
  font-style: italic;
  font-weight: 400;
  src: url('OpenSans-Italic-webfont.eot'); /* Old IE */
  src:
    url('OpenSans-Italic-webfont.eot?#iefix') format('embedded-opentype'),
    url('OpenSans-Italic-webfont.woff') format('woff'),
    url('OpenSans-Italic-webfont.ttf') format('truetype'),
    url('OpenSans-Italic-webfont.svg#open_sanslight') format('svg');
}

@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 700;
  src: url('OpenSans-Bold-webfont.eot'); /* Old IE */
  src:
    url('OpenSans-Bold-webfont.eot?#iefix') format('embedded-opentype'),
    url('OpenSans-Bold-webfont.woff') format('woff'),
    url('OpenSans-Bold-webfont.ttf') format('truetype'),
    url('OpenSans-Bold-webfont.svg#open_sansbold') format('svg');
}

@font-face {
  font-family: 'Open Sans';
  font-style: italic;
  font-weight: 700;
  src: url('OpenSans-BoldItalic-webfont.eot'); /* Old IE */
  src:
    url('OpenSans-BoldItalic-webfont.eot?#iefix') format('embedded-opentype'),
    url('OpenSans-BoldItalic-webfont.woff') format('woff'),
    url('OpenSans-BoldItalic-webfont.ttf') format('truetype'),
    url('OpenSans-BoldItalic-webfont.svg#open_sansbold_italic') format('svg');
}

File

core/misc/opensans/opensans.css