diff --git a/src/views/portal/course/Index.vue b/src/views/portal/course/Index.vue
index f9fc376d..10953ab1 100644
--- a/src/views/portal/course/Index.vue
+++ b/src/views/portal/course/Index.vue
@@ -488,7 +488,7 @@ export default {
         //if(this.course.pageIndex >1){
           if (scrollTop > 830) {
             document.querySelector("#fixd-box").style.cssText =
-              "position: fixed;top: -914px;width:"+outerWidth+"px";
+              "position: fixed;top: -885px;width:"+outerWidth+"px";
           } else {
               document.querySelector("#fixd-box").style.cssText = "position: static";
           }