diff --git a/src/images/new/bottom_bg.png b/src/images/new/bottom_bg.png
index d4157fe..28aaf7b 100644
Binary files a/src/images/new/bottom_bg.png and b/src/images/new/bottom_bg.png differ
diff --git a/src/pages/shells/index/index.vue b/src/pages/shells/index/index.vue
index 587aa8c..483d3e7 100644
--- a/src/pages/shells/index/index.vue
+++ b/src/pages/shells/index/index.vue
@@ -36,7 +36,7 @@
     <div class="body-conatiner" :class="{'body-conatiner_1': $route.path !== '/index/home'}">
       <div class="hud_left"></div>
       <div class="hud_right"></div>
-      <!-- <div class="bottom_bg"></div> -->
+      <div class="bottom_bg"></div>
       <div v-show="$route.path !== '/index/teach' && $route.path !== '/index/home' && $route.path !== '/index/errorinfo'" class="side-bar-container">
         <el-menu :default-active="$route.meta.guidePath" @select="handleSelectChild">
           <el-menu-item :index="menu.index" v-for="menu in childmenus" :key="menu.index">{{menu.label}}</el-menu-item>
@@ -548,6 +548,6 @@ export default {
 .bottom_bg
   position absolute
   bottom 0
-  _wh(100%, 100px)
-  background center bottom / auto 100% url(../../../images/new/bottom_bg.png) no-repeat
+  _wh(100%, 92px)
+  background center bottom / 100% 100% url(../../../images/new/bottom_bg.png) no-repeat
 </style>