Custom CSS isn't loaded correctly in folders

[tsumaru720]

Your custom CSS is pulled in relative to the parent domain rather than the current location of ethermine-stats

<link href="/css/custom.css" rel="stylesheet">

So if you have this located in http://example.org/ethermine/ - your browser will try to load css from http://example.org/css/custom.css

Simple fix

<link href="css/custom.css" rel="stylesheet">

(I cant PR as I've made significant changes to mine!)