diff --git a/src/styles/_contents.scss b/src/styles/_contents.scss
index e3d8d1e..e4f6a6b 100644
--- a/src/styles/_contents.scss
+++ b/src/styles/_contents.scss
@@ -329,7 +329,7 @@
         border-top: 1px solid #000;
         width: 100%;
         transition: all .17s ease-in-out;
-        z-index: 999;
+        z-index: 99;
         &.active{
             top: calc(92.8px + 50px);
         }