diff --git a/weasy/css/__init__.py b/weasy/css/__init__.py
index 97d13866..0e54ff61 100644
--- a/weasy/css/__init__.py
+++ b/weasy/css/__init__.py
@@ -83,6 +83,7 @@ def find_stylesheets(document):
     Find and parse stylesheets in a Document object. Return an iterable of
     stylesheets, in tree order.
     """
+    parser = document.css_parser
     for element in document.dom.iter():
         if element.tag not in ('style', 'link'):
             continue
@@ -102,15 +103,17 @@ def find_stylesheets(document):
             content = ''.join(content)
             # lxml should give us either unicode or ASCII-only bytestrings, so
             # we don't need `encoding` here.
-            yield parseString(content, href=element.base_url,
-                              media=media_attr, title=element.get('title'))
+            yield parser.parseString(content,
+                href=element.base_url,
+                media=media_attr, title=element.get('title'))
         elif element.tag == 'link' and element.get('href') \
                 and ' stylesheet ' in ' %s ' % element.get('rel', ''):
             # URLs should NOT have been made absolute earlier
             # TODO: support the <base> HTML element, but do not use
             # lxml.html.HtmlElement.make_links_absolute() that changes the tree
             href = get_url_attribute(element, 'href')
-            yield parseUrl(href, media=media_attr, title=element.get('title'))
+            yield parser.parseUrl(href,
+                media=media_attr, title=element.get('title'))
 
 
 def find_style_attributes(document):
diff --git a/weasy/document.py b/weasy/document.py
index ab20055a..e218d50f 100644
--- a/weasy/document.py
+++ b/weasy/document.py
@@ -21,7 +21,7 @@ import os.path
 import math
 import logging
 
-from cssutils import parseFile
+from cssutils import parseFile, CSSParser
 import lxml.html
 import cairo
 
@@ -54,6 +54,9 @@ class Document(object):
         # Go through the property setter which calls ensure_url()
         self.base_url = self.base_url
 
+        self.css_parser = CSSParser()
+        self.css_parser.setFetcher(utils.urllib_fetcher)
+
         self.user_stylesheets = user_stylesheets or []
         self.user_agent_stylesheets = user_agent_stylesheets or []
 
diff --git a/weasy/tests/resources/doc1.html b/weasy/tests/resources/doc1.html
index 510a9add..a373a439 100644
--- a/weasy/tests/resources/doc1.html
+++ b/weasy/tests/resources/doc1.html
@@ -2,10 +2,11 @@
 <head>
     <meta http-equiv=Content-Type content=text/html;charset=utf8>
     <link rel=stylesheet href="sheet1.css" media=screen>
+    <!-- currentColor means 'inherit' on color itself. -->
+    <link rel=stylesheet href="data:text/css,a%7Bcolor%3AcurrentColor%7D">
     <style media=print>
         @import url(sheet1.css);
-        li { color: red; }
-        a { color: currentColor; /* means 'inherit' on color itself. */ }
+        @import url(data:text/css,li%7Bcolor%3Ared%7D);
         a:after {
             content: " [" attr(href) "]"
         }
diff --git a/weasy/tests/test_css.py b/weasy/tests/test_css.py
index 397425f9..5e884111 100644
--- a/weasy/tests/test_css.py
+++ b/weasy/tests/test_css.py
@@ -56,17 +56,18 @@ def test_find_stylesheets():
     document = parse_html('doc1.html')
 
     sheets = list(css.find_stylesheets(document))
-    assert len(sheets) == 2
+    assert len(sheets) == 3
     # Also test that stylesheets are in tree order
-    assert [s.href.rsplit('/', 1)[-1] for s in sheets] \
-        == ['sheet1.css', 'doc1.html']
+    assert [s.href.rsplit('/', 1)[-1].rsplit(',', 1)[-1] for s in sheets] \
+        == ['sheet1.css', 'a%7Bcolor%3AcurrentColor%7D',
+            'doc1.html']
 
     rules = list(rule for sheet in sheets
                       for rule in css.effective_rules(sheet, 'print'))
     assert len(rules) == 9
     # Also test appearance order
     assert [rule.selectorText for rule in rules] \
-        == ['li', 'p', 'ul', 'li', 'a', 'a:after', ':first', 'ul',
+        == ['a', 'li', 'p', 'ul', 'li', 'a:after', ':first', 'ul',
             'body > h1:first-child']
 
 
diff --git a/weasy/tests/test_utils.py b/weasy/tests/test_utils.py
index a2e450d6..65ae6ef0 100644
--- a/weasy/tests/test_utils.py
+++ b/weasy/tests/test_utils.py
@@ -31,7 +31,7 @@ def test_multifunction():
     @utils.MultiFunction
     def foo():
         "Hello, docstrings!"
-    
+
     assert foo.__name__ == 'foo'
     assert foo.__doc__ == 'Hello, docstrings!'
     assert foo.__module__ == __name__
diff --git a/weasy/utils.py b/weasy/utils.py
index 1097d8d7..af61da0a 100644
--- a/weasy/utils.py
+++ b/weasy/utils.py
@@ -16,6 +16,8 @@
 #  You should have received a copy of the GNU Affero General Public License
 #  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+
+import urllib
 try:
     from urlparse import urljoin, urlparse
 except ImportError:
@@ -72,3 +74,17 @@ def ensure_url(filename_or_url):
         return filename_or_url
     else:
         return path2url(filename_or_url)
+
+
+def urllib_fetcher(url):
+    """
+    A "fetcher" for cssutils, based on urllib instead of urllib2, since
+    urllib has support for the "data" URL scheme.
+    """
+    result = urllib.urlopen(url)
+    info = result.info()
+    if info.gettype() != 'text/css':
+        # TODO: warn
+        return None
+    charset = info.getparam('charset')
+    return charset, result.read()
