diff --git a/customize.dist/src/less2/include/corner.less b/customize.dist/src/less2/include/corner.less
index feec62165..04d503cc9 100644
--- a/customize.dist/src/less2/include/corner.less
+++ b/customize.dist/src/less2/include/corner.less
@@ -89,6 +89,7 @@
         }
         &.cp-corner-big {
             width: 500px;
+            max-width: 95%;
         }
 
         .cp-corner-dontshow {