border-color | NN 4 IE 4 CSS 1
| Inherited: No
This is a shortcut attribute that lets you set multiple border edges to the same or different colors. Navigator 4 allows only a single value, which applies to all four edges. For Internet Explorer and Netscape 6, you may supply one to four space-delimited color values. The number of values determines which sides receive the assigned colors.
CSS Syntax
    border-color: color {1,4}
Value
For Navigator 4, one color value only. In Internet Explorer and Netscape 6, this attribute accepts one, two, three, or four color values, depending on how many and which borders you want to set with specific colors. Value quantities and positions are interpreted as shown in the following table.

Number of values | Effect
--- | ---
1 | All four borders set to value
2 | Top and bottom borders set to the first value, right and left borders set to the second value
3 | Top border set to first value, right and left borders set to second value, bottom border set to third value
4 | Top, right, bottom, and left borders set, respectively

Initial Value
The element's color style property (which is inherited if not specifically assigned for the element).
Example
    h2 {border-color: red blue red}
    div {border-color: red rgb(0,0,255) red}
Applies To
All elements, but only block and replaced elements in IE 4 and 5 for Windows.
Object Model Reference
    [window.]document.getElementById("elementID").style.borderColor