Course Table of Contents border and background Color printing is expensive. Color on the web is cheap.
Color can be very useful for adding to the readability of pages.
We've already used color with links and headings to distinguish them. We can use color in similar ways to differentiate different pieces of information on a page. You've already given a background-color and color to the various blocks of information on the recipes page. But you might like to work on them a bit now and get the color combination right. You can use whatever colors you like, but it's a good idea not to get carried away with millions of different colors.