);
```
-The values for `'font-size'`/`'fs'`, `'margin-top'`/`'mt'` and `'margin-bottom'`/`'mb'` are transformed into 'rem's. You can use any unit, but if you don't, we assume that you mean 'px'. If you do not set the keys `'font-size'`/`'fs'` defaults to `1rem`, `'margin-top'`/`'mt'` to `0` and `'margin-bottom'`/`'mb'` tp `$header-margin-bottom` for size `'small'`. Thereafter the values for a larger size are inherited from the values of the smaller size.
+The values for `'font-size'`/`'fs'`, `'margin-top'`/`'mt'` and `'margin-bottom'`/`'mb'` are transformed into 'rem's. You can use any unit, but if you don't, we assume that you mean 'px'. If you do not set the keys `'font-size'`/`'fs'` defaults to `1rem`, `'margin-top'`/`'mt'` to `0` and `'margin-bottom'`/`'mb'` to `$header-margin-bottom` for size `'small'`. Thereafter the values for a larger size are inherited from the values of the smaller size.
-The value for `'line-height'`/`'lh'` is transformed into a unitless number, that expresses the line-height relative to the fonts-size. You can also input any unit. If you don't, we assume that for numbers smaller than 10, you mean a typical relative line-height. However, if you put in anything larger than 10, we assume you mean 'px', since we have not yet seen relative line-heights that were larger than 10. If you do not set `'line-height'`/`'lh'` it defaults to `$header-lineheight` for size `'small'`. Thereafter the value for a larger size is inherited from the values of the smaller size.
+The value for `'line-height'`/`'lh'` is transformed into a unitless number, that expresses the line-height relative to the fonts-size. You can also input any unit. If you don't, we assume that for numbers smaller than or equal to 10, you mean a typical relative line-height. However, if you put in anything larger than 10, we assume you mean 'px', since we have not yet seen relative line-heights that were larger than 10. If you do not set `'line-height'`/`'lh'` it defaults to `$header-lineheight` for size `'small'`. Thereafter the value for a larger size is inherited from the values of the smaller size.
Warning. The `$header-styles` map has replaced `$header-sizes` map in version 6.3. `$header-styles` map is a more general map than `$header-sizes`. `$header-sizes` map is still working and is used to initialize the `$header-styles` map. In a future version `$header-sizes` is going to be depreciated.