Background Repeat & Position
Two properties control how and where a background image is placed within its container.
background-repeat
The default value is repeat, which tiles the image in both directions. Common alternatives: no-repeat, repeat-x, repeat-y, space (tiles with even spacing), and round (scales tiles to fit without gaps).
background-position
Sets the starting position of the image. Accepts keywords (top, center, bottom, left, right), percentages, or length values. Two values set horizontal then vertical: background-position: 20px top.
4-Value Syntax
The four-value syntax offsets from a specific edge: background-position: right 20px bottom 30px.