postcss-fluid-typography/test/fixtures/fallback.expected.css

PostCSS plugin for responsive typography values using linear scale

.foo {
  font-size: 16px;
  font-size: calc(12px + 9 * ((100vw - 420px) / 860));
  --font-size: calc(12px + 9 * ((100vw - 420px) / 860));
}
@media screen and (min-width: 1280px) {
  .foo {
    font-size: 21px;
    --font-size: 21px;
  }
}
@media screen and (max-width: 420px) {
  .foo {
    font-size: 12px;
    --font-size: 12px;
  }
}