diff --git a/github-markdown.css b/github-markdown.css
index 6b3aea7..3ecc6c9 100644
--- a/github-markdown.css
+++ b/github-markdown.css
@@ -281,18 +281,20 @@
   padding-left: 0;
   margin-top: 0;
   margin-bottom: 0;
+  list-style-type: decimal
 }
 
 .markdown-body ol ol,
-.markdown-body ul ol {
-  list-style-type: lower-roman;
+.markdown-body ul ol 
+.markdown-body ol {
+  list-style-type: decimal
 }
 
 .markdown-body ol ol ol,
 .markdown-body ol ul ol,
 .markdown-body ul ol ol,
 .markdown-body ul ul ol {
-  list-style-type: lower-alpha;
+  list-style-type: decimal
 }
 
 .markdown-body dd {
@@ -736,6 +738,10 @@
   margin-bottom: 0;
 }
 
+.markdown-body ul li {
+  list-style-type: disc;
+}
+
 .markdown-body li {
   word-wrap: break-all;
 }