Dropdown menu change color

Hi
I have my menu background in white and want to change the dropdown menu color when is on mobile, I already add some css but it still doesnt change.

    .main-navigation a {
          color: #01205F;
    }
    .main-navigation ul ul {
    	background-color: white;
    }
    #mainnav-mobi ul ul {
    	background-color: white;
    }

My link for the website is http://lynxconsulting.com.mx/

Wish you could help me
Thanks

Hello there,

Try adding this CSS code to Appearance > Customize > Additional CSS from dashboard.

    @media only screen and (max-width: 1024px) {
      #mainnav-mobi {
        background-color: #e2e1e1;
      }
    }

Regards,
Kharis

It worked!
Thanks for helping

You’re welcome!

Please let us know in a new topic if you have any further questions, or if we can provide you with any other assistance.

Regards,
Kharis