diff --git a/src/sass/style.scss b/src/sass/style.scss
index a6dc4a452..cb650b3ae 100644
--- a/src/sass/style.scss
+++ b/src/sass/style.scss
@@ -138,6 +138,7 @@ body {
   top: 0;
   background-position: center center;
   background-repeat: no-repeat;
+  z-index: -999;
 }
 
 html {