How to change top menu item text to an image?

[JurekSIN]

Hello, 

 

My website is chemical-safety.eu.

I would like to change a menu item text "Amazon" to an image with the Amazon logo. So I need to:

1) Change "Amazon" menu item text font color to transparent

2) Display an image background for the menu item displaying the Amazon logo.

 

I found this topic but can't figure out if it really is relevant or not. I believe the solution should only use CSS if possible.

Does anyone have any clue? It's easy on wordpress but pretty hard on presta...

 

Kind regards,

Jurek