Add a short CSS class to an HTML Web page to use animated and stationary GIF images as the page's background.

CSS 3 has some awesome new animation capabilities for web developers — rotating objects, fading them in and out and more — but writing the code is a bit more complicated than most CSS rules ...

Google's John Mueller reminded us that when it comes to your CSS background images, Google won't be indexing or ranking those images in image search. John Mueller said on Twitter "last I checked ...

One way to add a background photo to any custom Tumblr theme is to embed a simple CSS tag at the right location in the theme's HTML code.