But you don’t need to use it, and your sites can still look good without it. How Do CSS and HTML Work Together? If you learned about the web a long time ago, or taught yourself the basics, you may be ...

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

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.

Wybiral was able to do this by creating a grid of HTML DIVs that utilize CSS :hover selectors to request a new background image when your mouse moves over a box on the grid. As the image requests ...