CSS not reflected on page

Summary

Why is the CSS style not reflected on my page? Am I pointing to the css file correctly in my html?

Content

Why is the CSS style not reflected on my page? Am I pointing to the css file correctly in my html? The page shows the html without formatting - so bullets instead of a header menu.

HTML

<div>
<link rel="stylesheet" type="text/css" href="/files/css/midwest.css" />
<div id="header">
<ul id="navbar">
     <li><a href="#">Home</a></li>
     <li><a href="#">My Assignments</a></li>
     <li><a href="#">Course Catalog</a></li>
     <li><a href="#">Webinars</a></li>