diff --git a/src/views/study/coursenew.vue b/src/views/study/coursenew.vue
index e17cd600..11d0cc7f 100644
--- a/src/views/study/coursenew.vue
+++ b/src/views/study/coursenew.vue
@@ -181,15 +181,15 @@
                       <el-submenu :index="item.section.id">
                         <template slot="title">
                           <div style="display: flex;justify-content: space-between;">
-                            <span>{{item.section.name}}</span>
-                            <div style="margin-right: 23px;">({{ item.children.filter(item=>item.status == 9).length }}/{{ item.children.length }})</div>
+                            <span style="font-weight: 700;font-size: 16px;" :title="item.section.name">{{item.section.name.slice(0, 15)+(item.section.name.length > 15 ? '...' : '')}}</span>
+                            <div style="margin-right: 23px;font-weight: 700;font-size: 16px;">({{ item.children.filter(item=>item.status == 9).length }}/{{ item.children.length }})</div>
                           </div>
                         </template>
                         <el-menu-item-group>
                           <div class="units-info" :class="{'units-active':contentData.id == ele.id}" v-for="(ele, i) in item.children" :key="i" @click="showRes(ele,i,index)">
-                            <el-menu-item :index="ele.id">
+                            <el-menu-item :index="ele.id" style="padding: 0;padding-left: 10px;">
                               <div style="display: flex;justify-content: space-between;">
-                                <div> {{i+1}}.{{ ele.contentName }}</div>
+                                <div style="font-size: 16px;" :title="ele.contentName">{{i+1}}. {{ ele.contentName.slice(0, 15)+(ele.contentName.length > 15 ? '...' : '') }}</div>
                                 <div>
                                   <span v-if="contentData.id == ele.id" style="color: #387DF7;font-size: 14px;margin-right: 4px;">学习中</span>
                                   <img v-if="contentData.id == ele.id" :src="`${webBaseUrl}/images/playicon.png`" alt="">
@@ -1662,6 +1662,11 @@
 </script>
 
 <style lang="scss" scoped>
+::v-deep .el-icon-arrow-down{
+  color: #000;
+  font-weight: 900;
+  font-size: 16px;
+}
 .el-menu,
 .el-menu-item,
 .el-submenu__title {