diff --git a/source/css/app.css b/source/css/app.css
index 430e9699..23e26549 100644
--- a/source/css/app.css
+++ b/source/css/app.css
@@ -173,9 +173,17 @@ ul.inside li, ol.inside li {
 #content table th {
   margin: 0;
   padding: .5em;
+}
+
+#content table th {
+  font-weight: bold;
+}
+
+#content table td {
   font-weight: normal;
 }
 
+
 #content table th.sub1 {
   padding-left: 2em;
 }