styles = {
   fontSize: {
     use: true,
     values: {
       sm: .875rem,
       base: 1rem,
       lg: 1.125rem,
     }
   },
   fontWeight: {
     use: false,
     values: {
       light: 300,
       normal: 400,
       bold: 700,
     }
   }
}

for style in styles
  items = styles[style]
  for item in items
    {item}
      for property, value in items[item]
          {property} value