Server responds by "text/html" to a "text/css" request
<p><strong>PROBLEM:</strong> When I try to access the web page (localhost/mysite/admin), all goes well, except the CSS files which my server can't deliver !!</p>

<p><a href="http://i.stack.imgur.com/0VNcT.png" rel="nofollow">I got a <strong>500 Internal Server Error</strong></a></p>

<p><a href="http://i.stack.imgur.com/s4wTn.png" rel="nofollow">By investigating the problem, I found that the server returns a <strong>text/html</strong> instead of <strong>text/css</strong></a></p>

<p><strong>Apache 2.4.23
 / mod_wsgi 4.5.5
 / Python 3.4.2
 / Django 1.8
on Linux Debian (64-bit)</strong></p>

<p>Additional informations:</p>

<p>This is my <strong>settings.py</strong> file</p>

<pre><code>"""
Django settings for mysite project.

Generated by 'django-admin startproject' using Django 1.8.

For more information on this file, see
https://docs.djangoproject.com/en/1.8/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.8/ref/settings/
"""

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.8/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '##################################################'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'polls'
)

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'django.middleware.security.SecurityMiddleware',
)

ROOT_URLCONF = 'mysite.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR,'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'mysite.wsgi.application'


# Database
# https://docs.djangoproject.com/en/1.8/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

# Internationalization
# https://docs.djangoproject.com/en/1.8/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.8/howto/static-files/

STATIC_ROOT = '/var/www/django-projects/mysite/static'
STATIC_URL = '/static/'
</code></pre>

<p>The lines wich are appended to the httpd.conf (Apache HTTP Server)</p>

<pre><code># Enable access for Django website mysite
WSGIScriptAlias /mysite /var/www/django-projects/mysite/mysite/wsgi.py process-group=mysite
WSGIScriptAlias /static /var/www/django-projects/mysite/static process-group=mysite
WSGIPythonPath /var/www/django-projects/mysite:/home/ibrahim/.virtualenvs/django-1.8/lib/python3.4/site-packages
WSGIDaemonProcess mysite python-path=/var/www/django-projects/mysite:/home/ibrahim/.virtualenvs/django-1.8/lib/python3.4/site-packages
WSGIProcessGroup mysite
&lt;Directory /var/www/django-projects/mysite&gt;
    Require all granted
    Options FollowSymLinks
    ServerSignature On
&lt;/Directory&gt;
</code></pre>

<p>Project structure:</p>

<pre><code>- mysite
    - mysite
        + __pycache__
          __init__.py
          settings.py
          urls.py
          wsgi.py
    - polls
        + __pycache__
        + migrations
          __init__.py
          admin.py
          models.py
          tests.py
          views.py
    - static
        - admin
            - css
                base.css
                ........
            + img
            + js
    + templates
    .schema
    db.sqlite3
    manage.py
</code></pre>

<p>Note that the file <code>/usr/local/apache2/conf/mime.types</code> include the following line: <code>text/css       css</code></p>

<p>@Ankush Raghuvanshi: 
Yes, it serves all kind of files except CSS !
Also, when I us the built-in development server (which I run by using the command <code>python manage.py runserver</code> ): these CSS files works fine on my website.</p>

python css django apache