diff --git a/app/assets/stylesheets/layout.css b/app/assets/stylesheets/layout.css
index 09d71997f..5fd507828 100755
--- a/app/assets/stylesheets/layout.css
+++ b/app/assets/stylesheets/layout.css
@@ -164,6 +164,19 @@ body.fit {
   align-items: center;
 }
 
+.centered {
+  -webkit-box-align: center;
+  -ms-flex-align: center;
+  -moz-align-items: center;
+  -webkit-align-items: center;
+  align-items: center;
+  -webkit-box-pack: center;
+  -ms-flex-pack: center;
+  -moz-justify-content: center;
+  -webkit-justify-content: center;
+  justify-content: center;
+}
+
 .end {
   -webkit-box-align: end;
   -ms-flex-align: end;