Menu across width of page blocks logo and Donate Button

I used CSS code from a tutorial so that the dropdown menu goes horizontally across the width of the page.  When the horizontal menu appears,  it cuts off the logo and donate button on the sides of the menu. As you can see on the attached picture, the   "Pnai Or" is partly covered by the drop down menu.  On the right of the dropdown menu,  the half the Donate Button is covered.

Is there anyway to make the horizontal dropdown menu start a few spaces lower?   Thank you for any help!  lastpage@comcast.net

This is the code:.  Can I add a line so the horizontal dropdown menu starts a few lines down?

// *dropdown menu horizonta*//
  .header-nav .header-nav-item--folder .header-nav-folder-content{
 width: 100vw!important;
 position:fixed;
 background: #ffffff!important;
 
}
.header-nav-folder-content{
 display: flex;
 justify-content: center;
}
.header-nav-folder-item {
 margin-left: 1rem;
 margin-right: 1rem;
}
.header-nav-folder-content a:hover {
 font-weight:bold
}

// end header dropdown across page //

Can you share the website URL?

You'll have to be careful moving the menu too low or there will be a gap between the two hover targets (the folder link and the folder itself) which will cause the folder to disappear every time you move the cursor between the two elements.