diff --git a/assets/styles/header.sass b/assets/styles/header.sass
index 7da6fea..05669b7 100644
--- a/assets/styles/header.sass
+++ b/assets/styles/header.sass
@@ -3,7 +3,6 @@
 .header
   height: 40vh
   position: relative
-  z-index: 0
 
   &.actu
     background-color: var(--color-green)
@@ -45,6 +44,7 @@
     right: 0
     background-color: var(--color-secondary)
     height: $nav-height
+    z-index: 50
 
     @media screen and (max-width: $size-md)
       top: 30px