Adding a table to your website is a useful way to present large amounts of information clearly. Tables also provide an efficient use of space, and let you more easily read and compare complex data.

For a video-based intro check out this HTML/CSS/JS Crash Course on YouTube. HTML is one of the main technologies ... reuse the same CSS stylesheet across multiple HTML documents.

One of the more important details of understanding and using Cascading Style Sheets (CSS) is the cascading aspect of its name. That is, how are multiple rules for the same element handled?