Great work! The writing style is clear and easy to understand. Clearly a great deal of work! If I had my druthers, I'd bump up the contrast just a bit, espec

Great work! The writing style is clear and easy to understand. Clearly a great deal of work! If I had my druthers, I'd bump up the contrast just a bit, especially in the code blocks. Also, just a minor thing: looks like you've used a[src...] in your attribute selector examples when I believe you mean to have a[href...].