diff --git a/flaskr/static/css/common/main.css b/flaskr/static/css/common/main.css
index befe352..a032fd2 100755
--- a/flaskr/static/css/common/main.css
+++ b/flaskr/static/css/common/main.css
@@ -98,6 +98,9 @@ span.required-asterisk {
 .no-pointer-events {
     pointer-events: none;
 }
+.plot-tooltip {
+    border-radius: 3px;
+}
 
 
 /** TWEAKS *******************************************************************/
--
libgit2 0.21.2