How to Add an Image to a CSS File. Web pages normally add images using the inline HTML "img" tag. CSS coding usually doesn't set an image's source because CSS controls design rather than content.

How Do I Create Multiple Fixed Backgrounds in My CSS File?. Cascading Style Sheets (CSS) level 3, also known as CSS3, introduces multiple background images support.

There are several ways to change your background on a Mac. Here's how to change your Mac's background to any image, through four different methods.