Type scale builder

/* Modular type scale · base 16px · ratio 1.333 */
:root {
  --fs-xs: 0.563rem; /* 9.0px */
  --fs-sm: 0.750rem; /* 12.0px */
  --fs-base: 1.000rem; /* 16.0px */
  --fs-lg: 1.333rem; /* 21.3px */
  --fs-xl: 1.777rem; /* 28.4px */
  --fs-2xl: 2.369rem; /* 37.9px */
  --fs-3xl: 3.157rem; /* 50.5px */
  --fs-4xl: 4.209rem; /* 67.3px */
  --fs-5xl: 5.610rem; /* 89.8px */
  --fs-6xl: 7.478rem; /* 119.7px */
  --lh-body: 1.4;
}