A software developer from San Francisco managed to do what no one else did before, creating a fully-functional two-way chat using only CSS and HTML, completely ditching JavaScript in the process.

Use this handy, simplified guide to quickly learn HTML and CSS -- a foundation of modern web development.

Collecting Spy Sheets: CSS allows user tracking in emails Users can be tracked not only on the web, but also in emails. Only a few email clients prevent tracking via CSS.