How to add a "Buy" button in the Header? Startup Theme.

[papatonkids]

Hey there!

Could you help me with adding a "Buy" button? I use the Startup Theme.

I'd like to add a button directly in the top right of the Header, next to the search and basket icon. I can do it via header.liquid but I don't know which tag code and in which line of code I need to insert.

Looking forward to your reply!

Thank you so much.