diff --git a/app/css/app.css b/app/css/app.css
index 5c7b6e53..342e9ca9 100644
--- a/app/css/app.css
+++ b/app/css/app.css
@@ -2562,3 +2562,11 @@ ce671b orange
   font-size: 13px;
   margin-left: 8px;
 }
+
+
+.tooltip-inner {
+  background: rgba(0,0,0, 0.8);
+}
+.tooltip-arrow {
+  opacity: 0.8;
+}
\ No newline at end of file