diff --git a/web/org.openbravo.mobile.core/assets/css/ob-standard.css b/web/org.openbravo.mobile.core/assets/css/ob-standard.css
--- a/web/org.openbravo.mobile.core/assets/css/ob-standard.css
+++ b/web/org.openbravo.mobile.core/assets/css/ob-standard.css
@@ -151,13 +151,15 @@
   filter:alpha(opacity=50);
 }
 
-/* when in small device poup is shown in top position*/
+/* when in small device popup is shown in top position*/
 @media all and (max-width: 800px) {
-  .modal-poup {
+  .modal-popup {
     top: 5px !important;
     left: 5px !important;
     margin-left: 0px !important;
-    width: 97% !important;
+    margin-top: 0px !important;
+    width: calc(100% - 24px) !important;
+    height: calc(100% - 24px) !important;
   }
 }