diff --git a/web/skins/classic/css/base/views/zones.css b/web/skins/classic/css/base/views/zones.css
index 125a558ec..5319c9b58 100644
--- a/web/skins/classic/css/base/views/zones.css
+++ b/web/skins/classic/css/base/views/zones.css
@@ -29,6 +29,7 @@
   top:0;
   left:0;
   position: relative;
+  width: 100%;
 }
 .ZonesImage svg {
   width: 100%;