I downloaded daux.io-master and ran "npm install" followed by "grunt" without changing any of the default settings or content. The site shows up correctly in Chrome but expand/collapse links such as "Examples" and "More Examples" don't work in IE and there is no style at all in Firefox.
Viewing the source, I see links like this:
<link href='//127.0.0.1:8085/templates/default/themes/daux-blue/css/daux-blue.css' rel='stylesheet' type='text/css'>
I don't know why there's a backslash after the port number, but that almost certainly is the cause of the problem. (All three browsers show this in the source, but they have mixed results in handling it.)
Windows 7 (64-bit) SP1