common/security-features/subresource/template/font.css.template

@font-face {
  font-family: 'wpt';
  font-style: normal;
  font-weight: normal;
  src: url(/common/security-features/subresource/font.py?id=%(id)s) format('truetype');
}
body {
  font-family: 'wpt';
}