Adjusting GUI table & details panes fonts to a slightly smaller size.

Fixed a number of issues with details panes; table embedding, etc.

Change-Id: I7c7ebf913f5755e385c32114e9f6a82f45997842
diff --git a/web/gui/src/main/webapp/app/onos.css b/web/gui/src/main/webapp/app/onos.css
index 52a0d63f..fa485ac 100644
--- a/web/gui/src/main/webapp/app/onos.css
+++ b/web/gui/src/main/webapp/app/onos.css
@@ -46,6 +46,6 @@
     -webkit-margin-after: 0;
     margin: 32px 0 4px 16px;
     padding: 0;
-    font-size: 21pt;
+    font-size: 18pt;
     font-weight: lighter;
 }