Dawn Theme Help. Main dropdown menu is transparent

I have an image in the background that I need to stay visible with parallax scrolling.

I need the dropdown menu (example under ‘shop’) to have a solid background as currently it is transparent..

I have tried code but this always removed the background image and makes it white.

sorry - I forgot to share the link..

password: beautybossmedia

@Sammiejojojo ,

ul#HeaderMenu-MenuList-2 {
    background: #fff !important;
}

Add this css at the bottom of Online Store->Theme->Edit code->Assets->base.scss.liquid

@Sammiejojojo

Please add the following CSS code to your assets/base.css bottom of the file.

details[open]>.header__submenu {
    background: #fff !important;
}

Thanks!