CSS Background Properties let you control the appearance of an element's background, including color, images, positioning, repetition, and sizing. These properties help create visually rich layouts and user experiences.

The background-color property sets the background color of an element using a color name, HEX, RGB, RGBA, or HSL format.

The background-image property sets an image or gradient as the background of an element.

The background-repeat property controls whether and how a background image is repeated.

The background-attachment property determines if the background scrolls with the content or stays fixed.

The background-position property sets the starting position of a background image.

The background-size property defines the size of the background image.

The background shorthand allows combining background properties in one line.