diff -r ca3ceedd39c2 -r 2305b1bf1f7d src/pyams_skin/resources/less/ui.less
--- a/src/pyams_skin/resources/less/ui.less	Sat Jul 21 16:12:51 2018 +0200
+++ b/src/pyams_skin/resources/less/ui.less	Sat Jul 21 16:13:10 2018 +0200
@@ -81,6 +81,9 @@
 }
 
 .ui-sortable {
+	overflow: auto;
+	overflow-x: hidden;
+
 	.ui-sortable-helper {
 		background-color: @grayDark;
 	}