When you specify border options for a frame, the corresponding frameset option is overridden. The options are Yes, No, and Default.
Most browsers default to Yes.
Border Color sets a border color for all borders adjacent to the current frame. Choose Yes to display borders in three-dimensional color, choose No to display borders as flat and gray, or choose Default to let the browser determine how borders are displayed. Most browsers default to Yes. Border Color sets a color for all borders in the current frameset. This setting can be overridden for a single frame by a setting a border color for that frame.