Hello Jeanne,
We just double checked, and it doesn’t look like support received an email from you. The code snippet goes in your theme settings under “custom CSS” (you’ll have to scroll all the way to the bottom 
).
Just copy and paste in:
#meteor-desktop-nav {
row-gap: 10px;
}
I hope this helps. Again, if you need further assistance, please don’t hesitate to reach out to support@heliumdev.com