diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60fbdf2..fae24c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 2016-05-31
+* Add support for css table rules from the [Markdown plugin](https://github.com/bueltge/Markdown-for-MantisBT)
+
 ## 2016-03-23
 * Fix button size #11
 
diff --git a/default.css b/default.css
index 98e139e..c8d9c09 100644
--- a/default.css
+++ b/default.css
@@ -7,7 +7,7 @@
  * Description: Defaults for Colorized theme, Version >= 1.3*
  * 
  * @since   2009-04
- * @version 2016-03-23
+ * @version 2016-05-31
  * @author  Frank Bültge <frank@bueltge.de>
  */
  
@@ -125,13 +125,13 @@ td,th {
 	padding: 4px;
 	text-align: left;
 }
-td.center {
+td.center, td.go-center {
 	text-align: center;
 }
-td.left {
+td.left, td.go-left {
 	text-align: left;
 }
-td.right {
+td.right, td.go-right {
 	text-align: right;
 }
 td.category, th.category {