mobile menu horizontal line menu color change

In support online forum , I had the help of a rep to change the color of my mobile menu (3 horizontal lines nav pull down) and it worked, but it also changed how when you scroll down the page it keeps a locked navigation with a background color. Below is the site as well as code given by your rep.

http://192.185.30.1/~evanscriminallaw/

.mobile_menu_bar:before {
color: green;
}