diff --git a/trac/htdocs/main.css b/trac/htdocs/main.css
index ce77090..525d83c 100644
--- a/trac/htdocs/main.css
+++ b/trac/htdocs/main.css
@@ -52,3 +52,18 @@ p {
 #footer {
   display: none;
 }
+
+/* Styles for images in documentation and articles */
+
+img.math {
+  vertical-align: middle;
+  margin-left: 10px;
+  margin-right: 10px;
+}
+
+img.matrix {
+  vertical-align: top;
+  margin-right: 30px;
+  margin-top: 10px;
+}
+