Custom Menu Icon

I need to be able to scroll down to the contact form on mobile in the off-canvas panel

In order to scroll, this CSS needs to go:

nav#generate-slideout-menu {
    overflow: visible;
}

But the exist icon needs this CSS to show, that's why I thought it was tricky.

Can you add the logo to the off canvas menu so I can see if CSS can help with the layout :)