GIFs can only display 256 colors, and are usually used ... You can also add a background-position attribute to your CSS, with values such as center, left top and right bottom.

The “Named Colors” section of the CSS Color Module Level 4—the latest specification for color values and properties within the Cascading Style Sheets language—are 141 standard colors.

CSS is the standard and preferred mechanism for formatting ... cascading style sheets provide a central location in which information about what various fonts, foreground colors, background colors, ...

WordPress' built-in editor has an HTML mode that lets you override the background color of a post by changing its CSS (Cascading Style ... hexadecimal numbers for colors supported by most Web ...