diff --git a/mobile/room/liveRoom.html b/mobile/room/liveRoom.html
index 12bde90..bb1c9f3 100644
--- a/mobile/room/liveRoom.html
+++ b/mobile/room/liveRoom.html
@@ -835,7 +835,7 @@ $(function(){
                 $("#myVideo").css("transform","scale(1.05)")
                 var ua = window.navigator.userAgent.toLowerCase();
                 if (/iphone|ipad|ipod/.test(ua)) {
-                    $("..sound-tips").css("bottom","50%").css("left","50%").css("margin-left","-1.63rem").css("margin-bottom","2rem")
+                    $(".sound-tips").css("bottom","50%").css("left","50%").css("margin-left","-1.63rem").css("margin-bottom","2rem")
                 }
                 // $(".room-secret-bg img").attr("src",'https://zhibocdn.yabolive.net/comm'+data.room.face.split('?')[0]+'?x-oss-process=image/resize,w_375')
                 $(".secret-btn").unbind("click").on("click",function(){