Remove grey bar behind page navigation buttons on header

I found an earlier request by another member for CSS to change the background from grey to white. It worked, except that there is still a lingering horizontal grey bar behind the page navigation buttons on the header. Would you be able to provide some CSS for me to eliminate that bar?

Thank you so much.

 

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.wrapper{
background:white!important;
}
.header{
background:white!important;
}
.menu_bar{
background:white!important;
}

 

Thank you very much for all of your help!