Your page has:
<link href="file:///C|/xampp/htdocs/boilerplate.css" rel="stylesheet" type="text/css">
<link href="file:///C|/xampp/htdocs/FSTI.css" rel="stylesheet" type="text/css">
You need to update those to be relative to the page... probably:
<link href="boilerplate.css" rel="stylesheet" type="text/css">
<link href="FSTI.css" rel="stylesheet" type="text/css">
There are a lot of other parts that have the same path issue. Maybe run a find and replace to remove any references to:
"file:///C|/xampp/htdocs/"