diff --git a/css/default.css b/css/default.css
index 48f8a0fcb..36942d8a3 100644
--- a/css/default.css
+++ b/css/default.css
@@ -31,7 +31,8 @@ a:hover, a:focus, a:active {color:#000;text-decoration:underline}
 .hd_pops_footer button {margin-right:5px;padding:5px 10px;border:0;background:#393939;color:#fff}
 
 /* 상단 레이아웃 */
-#hd {z-index:10;position:relative;min-width:970px;background:#fff}
+#hd {z-index:4;position:relative;min-width:970px;background:#fff}
+.hd_zindex {z-index:10 !important}
 #hd_h1 {position:absolute;font-size:0;line-height:0;overflow:hidden}
 #hd_wrapper {position:relative;margin:0 auto;padding:26px 0;width:970px;zoom:1}
 #hd_wrapper:after {display:block;visibility:hidden;clear:both;content:""}
diff --git a/js/jquery.menu.js b/js/jquery.menu.js
index 7969c4a25..a05b03de6 100644
--- a/js/jquery.menu.js
+++ b/js/jquery.menu.js
@@ -18,6 +18,7 @@ $(function(){
     var $gnb = $(".gnb_1dli > a");
     $gnb.mouseover(function() {
         if(mouse_event) {
+            $("#hd").addClass("hd_zindex");
             $(".gnb_1dli").removeClass("gnb_1dli_over gnb_1dli_over2 gnb_1dli_on");
             $(this).parent().addClass("gnb_1dli_over gnb_1dli_on");
             menu_rearrange($(this).parent());
@@ -38,6 +39,7 @@ $(function(){
     });
 
     $gnb.focusin(function() {
+        $("#hd").addClass("hd_zindex");
         $(".gnb_1dli").removeClass("gnb_1dli_over gnb_1dli_over2 gnb_1dli_on");
         $(this).parent().addClass("gnb_1dli_over gnb_1dli_on");
         menu_rearrange($(this).parent());
@@ -71,6 +73,7 @@ $(function(){
 });
 
 function submenu_hide() {
+    $("#hd").removeClass("hd_zindex");
     $(".gnb_1dli").removeClass("gnb_1dli_over gnb_1dli_over2 gnb_1dli_on");
 }