Whenever I need something from the stylesheets I have to look up how I can access them. So, for the sake of sanity, here they are:

... which finally brings me to my Wikipedia Template: It allows that inter-wiki links are displayed like any other external link: blue font and this small icon after the text. For some reason this icon is removed from inter-wiki links which I corrected.

Sometimes the icon is not displayed properly. I thought the template was outdated but that wasn't the case. I refreshed the page and it displayed properly. Tested with Mozilla Firefox 23.0.1. and Internet Explorer 10.