diff --git a/views/bootstrap4/styles/application.css b/views/bootstrap4/styles/application.css
index 69a840b9c..a5d5bcdd9 100644
--- a/views/bootstrap4/styles/application.css
+++ b/views/bootstrap4/styles/application.css
@@ -368,11 +368,14 @@ div.popupbox {
 	color: black;
 	text-align: left;
 	text-shadow: none;
+	line-height: 1.4em;
 	border: 1px solid #ccc;
 	padding: 25px 15px 15px 15px;
 	display: none;
 	position: absolute;
 	min-width: 230px;
+	max-width: 280px;
+	white-space: break-spaces;
 	z-index: 10;
 }