Blog post navigation drop down white on white

I have a blog which has a white section background.

But I also have white text for my navigation links.

So I have invisible dropdowns (only on blog pages).

I have seen some code on forums for Header-nav-folder but nothing seems to be changing.

Thinking this must be a common scenario to have a white navigation for a blog post?

Appreciate any ideas.

Hi,

What is site url? We can help easier

Use this code to Custom CSS box to fix problem

body[class*="type-blog"].view-item .header-nav-folder-content {
	background-color: #f1f !important;
}