Center navigation menu thesis theme

Hello, thank you for your excellent work but unfortunately I cannot get this to work. The Situation is : SPF 2013, created a site collection for the search centen, Internet Explorer is used as browser; I have uploaded a script Editor Webpart to the Webpart Gallery as there were only the ones concerning search. pasted to code to a txt. file, uploaded text file to the theme Gallery, referenced to the txt file, it seems to be able to Access the txt file but nothing changes on the page. Can anyone help? It seems that I am only missing just a small part. thanks, Georg

Center navigation menu thesis theme

center navigation menu thesis theme

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