diff --git a/src/assets/css/components/views/charts2/networkOverviewLine.scss b/src/assets/css/components/views/charts2/networkOverviewLine.scss
index f7df050e..e76c07b5 100644
--- a/src/assets/css/components/views/charts2/networkOverviewLine.scss
+++ b/src/assets/css/components/views/charts2/networkOverviewLine.scss
@@ -72,6 +72,7 @@
     border-radius: 4px 0 0 0;
     background: #046ECA;
     top: 0;
+    z-index: 1;
     transition: all linear .2s;
   }
   .line-value {