diff --git a/public/css/index.css b/public/css/index.css
index 086acea..616d855 100644
--- a/public/css/index.css
+++ b/public/css/index.css
@@ -166,6 +166,7 @@ div{
     border-radius: 10px;
     position: relative;
     display: block;
+    z-index: 999;
 }
 .device-testing-prepare,.device-testing,.device-testing-report{
     display: block;