diff --git a/userContent.css b/userContent.css
index 5d398f61e9889f038234c55920eeb8dff7a20cbb..642d843abcb719097cbd21033ef9bfdd63f21792 100644
--- a/userContent.css
+++ b/userContent.css
@@ -8,6 +8,22 @@
     body{ font-weight: 400 !important; /* font-weight 300 makes the text really hard to read */ }
 }
 
+@-moz-document domain(phaidra-sandbox.univie.ac.at) {
+    body{ font-weight: 400 !important; /* font-weight 300 makes the text really hard to read */ }
+    .flex-70{
+      max-width: 98% !important; /* 70% is a waste of screen real estate */
+      flex: 1 1 98% !important;
+    }
+}
+
+@-moz-document domain(xxx-phaidra-entw.univie.ac.at) {
+    body{ font-weight: 400 !important; /* font-weight 300 makes the text really hard to read */ }
+    .flex-70{
+      max-width: 98% !important; /* 70% is a waste of screen real estate */
+      flex: 1 1 98% !important;
+    }
+}
+
 @-moz-document domain(www.p-m-a.at) {
 /* this is a nice example for really bad web design: dark grey background with slightly darker grey letters */
   body{ background-color: #FFFFFF !important; background: none; }