border-bottom-color
The border-bottom-color CSS property sets the color of the bottom border of an element. Note that in many cases the shorthand CSS properties border-color or border-bottom are more convenient and preferable.
Values
<color>
Is a <color> CSS value describing the color of the bottom border.
inherit
Is a keyword denoting the color of the bottom border of the parent’s element (which may be different from the border-bottom-color default value)
Example
<!DOCTYPE HTML> <html> <head> <title>CSS Tutorials</title> <style> p { border: solid 0.3em gold; border-bottom-color: red; } </style> </head> <body> <p class="element1"> Border Bottom Colour demonstration </body> </html>