Header Image bottom border color

This Header Image bottom border color HAD a black line at the bottom.
ALSO: this line also affects the line of the top small images in the TOP TITLE part.

OLD:

/* This is the custom header image */
#branding img {
border-top: 0px solid #000;
border-bottom: 1px solid #000;
display: block;
float: left;
}

Now change it to 1px grey color:

/* This is the custom header image */
#branding img {
border-top: 0px solid #000;
border-bottom: 1px solid #666;
display: block;
float: left;
}