index.css

/* web latest */
@font-face {
  font-family: 'Source Han Sans Regular';
  src: url('./latest/source-han-sans-regular.eot');
  src:
    url('./latest/source-han-sans-regular.eot') format('embedded-opentype'),
    url('./latest/source-han-sans-regular.woff') format('woff'),
    url('./latest/source-han-sans-regular.ttf') format('truetype'),
    url('./latest/source-han-sans-regular.svg') format('svg');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'Source Han Sans Light';
  src: url('./latest/source-han-sans-light.eot');
  src:
    url('./latest/source-han-sans-light.eot') format('embedded-opentype'),
    url('./latest/source-han-sans-light.woff') format('woff'),
    url('./latest/source-han-sans-light.ttf') format('truetype'),
    url('./latest/source-han-sans-light.svg') format('svg');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'Source Han Sans Normal';
  src: url('./latest/source-han-sans-normal.eot');
  src:
    url('./latest/source-han-sans-normal.eot') format('embedded-opentype'),
    url('./latest/source-han-sans-normal.woff') format('woff'),
    url('./latest/source-han-sans-normal.ttf') format('truetype'),
    url('./latest/source-han-sans-normal.svg') format('svg');
  font-weight: normal;
  font-style: normal;
}

body .part-light {
  font-family: 'Source Han Sans Light';
}

body .part-regular {
  font-family: 'Source Han Sans Regular';
}

body .part-nomral {
  font-family: 'Source Han Sans Normal';
}