diff --git a/src/views/study/coursenew.vue b/src/views/study/coursenew.vue
index 5fc1cb0a..8418f761 100644
--- a/src/views/study/coursenew.vue
+++ b/src/views/study/coursenew.vue
@@ -175,7 +175,7 @@
             </div>
             <!--   -->
             <div class="course-units" v-if="tab == 1">
-              <div :style="`height: ${controlHeight}px;overflow-y: auto;`">
+              <div style="min-height: 350px;max-height: 650px ;overflow-y: auto;">
                 <div class="catalog" v-if="courseInfo.type == 20">
                   <div  v-for="(item, index) in catalogTree" :key="index" :name="index">
                     <el-menu
@@ -1747,7 +1747,7 @@
     margin: 20px auto;
     .course-playbox {
       background-color: #fff;
-      min-height: 400px;
+      //min-height: 400px;
       display: flex;
       justify-content: space-between;
       .course-player-container {