styles.css

body:lang(en) {
  font-size: 62.5%;
  font-family: en;
}

body:lang(zh-cn) {
  font-family: zh-cn;
}

@font-face {
  font-family: en;
  src: local('Georgia'), local('Times New Roman'), local('Times'), local('serif')
}

@font-face {
  font-family: zh-cn;
  src: local('STKaiti'), local("微軟雅黑體");
}

@font-face {
  font-family: zh-cn;
  unicode-range: U+00-024F;
  src: local('Georgia'), local('Times New Roman'), local('Times'), local('serif')
}