The latest rumblings from the EU tech scene, a story from our wise ol' founder Boris, and some questionable AI art. It's free, every week, in your inbox. Sign up now! CSS (Cascading Style Sheets) is a ...

Your Tumblr theme sets the background color of each of your posts. Tumblr also offers you the option to edit your theme to further customize your design. For example, you can change your posts' ...