diff --git a/flaskr/__init__.py b/flaskr/__init__.py
index 089524d..00c7092 100644
--- a/flaskr/__init__.py
+++ b/flaskr/__init__.py
@@ -17,10 +17,10 @@ def optimize_css():
     static_dir = root + '/undercover/flaskr/static/'
     css = open(static_dir + 'styles.css', 'r').read()
     minified_with_comments = "".join(list(map(
-        lambda line: line if 'media' in line or 'padding' in line or 'transition' in line else line.replace(' ', ''),
+        lambda line: re.sub(r':\s*', ':', re.sub(r'^\s*', '', line)),
         css.split('\n')
     )))
-    minified = re.sub( r'/\*[\s\S]*?\*/', "", minified_with_comments)
+    minified = re.sub(r'/\*[\s\S]*?\*/', "", minified_with_comments)
     minified_file = open(static_dir + 'styles_min.css', 'w')
     minified_file.write(minified)
     minified_file.close()