diff --git a/website/static/css/custom.css b/website/static/css/custom.css
index a0556053e378..eb50deecf550 100644
--- a/website/static/css/custom.css
+++ b/website/static/css/custom.css
@@ -123,6 +123,7 @@ div.jest-card-front,
 }
 
 div.jest-card-front {
+  z-index: 1;
   background-color: #fff;
   border: 1px solid #bbb;
 }