title: semantic UI doesn't work in django's template file
body: <p>I'm writing a django website and I want to use <code>'Semantic UI'</code> for its front end. but when I add a <code>Semantic UI Button</code> to my first page in django, it only shows plain text!</p>
  
  <p>the file tree of my project is like this : </p>
  
  <pre><code>Matab-&gt;
  ----Matab-&gt;
  --------Templates-&gt;
  --------------base.html
  --------------login.html
  ---------settings.py
  -----media-&gt;
  --------css-&gt;
  ------------semantic.css
  </code></pre>
  
  <p>settigs.py :</p>
  
  <pre><code>MEDIA_ROOT = os.path.join(os.path.dirname(__file__),'../media/').replace('\\','/')
  MEDIA_URL = '/media/'
  </code></pre>
  
  <p>base.html :</p>
  
  <pre><code>&lt;html&gt;
          &lt;head&gt;
              &lt;link rel="stylesheet" href="{{ MEDIA_URL }}css/semantic.css"/&gt;
              &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8" /&gt;
              &lt;meta name="author" content="Navid" /&gt;
          &lt;/head&gt;
          &lt;body&gt;
              &lt;div id="mainContent"&gt;
              {% block content %}{% endblock %}
              &lt;/div&gt;
          &lt;/body&gt;
      &lt;/html&gt;
  </code></pre>
  
  <p>login.html: </p>
  
  <pre><code>{% extends 'base.html' %}
  {% block content %}
      &lt;div class="ui button"&gt;hello&lt;/div&gt;
  {% endblock %}
  </code></pre>