diff --git a/css/light-grey.css b/css/light-grey.css
index fb439a809..0e4e164a9 100644
--- a/css/light-grey.css
+++ b/css/light-grey.css
@@ -1449,6 +1449,8 @@ div.ui-dialog-header {
 .ui-tooltip {
   padding: 10px 10px;
   box-shadow: 0 0 7px black;
+  max-width: 350px;
+  overflow: hidden;
 }
 .ui-tooltip .arrow {
   width: 70px;
diff --git a/css/light-grey.scss b/css/light-grey.scss
index 767db415c..8d13bfcf7 100644
--- a/css/light-grey.scss
+++ b/css/light-grey.scss
@@ -1539,6 +1539,8 @@ div.ui-dialog-header {
 .ui-tooltip {
 	padding: 10px 10px;
 	box-shadow: 0 0 7px black;
+	max-width: 350px;
+	overflow: hidden;
 }
 .ui-tooltip .arrow {
 	width: 70px;