@font-face {
  font-family: 'Noto Sans Math';
  font-style: normal;
  font-weight: 400;
  src: url(https://fonts.gstatic.com/s/notosansmath/v19/7Aump_cpkSecTWaHRlH2hyV5UHkG.ttf) format('truetype');
}
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 600;
  font-stretch: normal;
  src: url(https://fonts.gstatic.com/s/opensans/v44/memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4n.ttf) format('truetype');
}
@font-face {
  font-family: 'Teko';
  font-style: normal;
  font-weight: 300;
  src: url(https://fonts.gstatic.com/s/teko/v23/LYjYdG7kmE0gV69VVPPdFl06VN9JG7Sy.ttf) format('truetype');
}
@font-face {
  font-family: 'Teko';
  font-style: normal;
  font-weight: 500;
  src: url(https://fonts.gstatic.com/s/teko/v23/LYjYdG7kmE0gV69VVPPdFl06VN8lG7Sy.ttf) format('truetype');
}