Sets a color to the background of an element. This color sits behind the border and the background image.
background-color: #FFF;
IE5.5+, FF1+, SA1.3+, OP9.2+
| Color keyword | One of the 17 recognized color keywords; aqua, black, blue, fuchsia, gray, green, lime, maroon, navy, olive, orange, purple, red, silver, teal, white and yellow. |
| Hex color | Three two-character numbers in the hexadecimal system(base 16) |
| Percentage value | The regular format of a percentage value. |
| RGB decimal | Use RGB values from 0 to 255; rgb(255, 0, 333). |
| RGB percentage | Specify a color using percentage values: rgb(100%, 0%, 33%). |
| transparent | Sets no color value. |