@media only screen and (max-width: 1680px) {
  html {
    font-size: 15px;
  }
}
@media only screen and (max-width: 1440px) {
  html {
    font-size: 12px;
  }
}
@media only screen and (max-width: 1280px) {
  html {
    font-size: 10px;
  }
}