sticky secondary navigation

The page: 8493 isn’t included in either your Snippet or Yings snippet. You have 8393 in there. Make sure those IDs are set correctly.

1. Create a header element at appearance > elements, enable the merge feature, set location to entire site.

2. Remove this CSS:

nav#secondary-navigation {
    position: sticky;
    top: 0;
}

3. Add this CSS:

.header-wrap {
    position: sticky;
    top: 0;
}