Looks nice. Good colors I suggest to change font size and line hight to Font-size: 1.30rem; Line-height: 1.65; It gives a more calm feeling. But it affects

Looks nice. Good colors I suggest to change font size and line hight to Font-size: 1.30rem; Line-height: 1.65; It gives a more calm feeling. But it affects how many words are per line (as its a bit bigger) so suggest also to make the text wider Width: 44rem; Other inputs: The color headline seams strange and out of context. The chapter indications (I, II ...) are too big in a too large space to understand what is going on. I suggest you eighter center them, make them a tiny bit smaller or make the space above and below a tiny bit smaller. The font is named ‘yoga-serif’ its an ansi representation of a UTF8 ‘yoga-serif’ so im not sure it will ever render yoga-serif. You must use ' or " around strings in css - but as there is no space in the name you can remove the ‘ and ’ and good content too :) Why dont you put it on github so people can contribute?