Change the green background color of the menus

I want to change the green background color of the menus but I can not

Hey there

I hope you are well today and thank you for your question.

You can try achieving this by adding the following CSS code in the Custom CSS option of your theme on the below path.

Admin Area -> Appearance -> Customize -> Additional CSS

/* change background color*/
.navbar-default .navbar-nav > .active > a, .navbar-default .navbar-nav > .active > a:hover, .navbar-default .navbar-nav > .active > a:focus, .navbar-default .navbar-nav > li > a:hover, .navbar-default .navbar-nav > li > a:focus, .navbar-default .navbar-nav > .open > a, .navbar-default .navbar-nav > .open > a:hover, .navbar-default .navbar-nav > .open > a:focus, .dropdown-menu > li > a:hover, .dropdown-menu > li > a:focus, .navbar-default .navbar-nav .open .dropdown-menu > li > a:hover, .navbar-default .navbar-nav .open .dropdown-menu > li > a:focus{
  background-color:black;
  color: white;
}

Best Regards,
Support