diff --git a/app/index/view/mobile/public/header.html b/app/index/view/mobile/public/header.html
index 0146df26..cf9b887e 100644
--- a/app/index/view/mobile/public/header.html
+++ b/app/index/view/mobile/public/header.html
@@ -59,7 +59,7 @@
         border-top: 1px solid #eee;
         box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
         display: none;
-        position: absolute;
+        position: fixed;
         top: 46px;
         left: 0;
         z-index: 99;