style:样式

@@ -44,6 +44,8 @@
 
   ul {
     position: relative;
+    height: calc(100vh - 120px);
+    overflow-y: scroll;
 
     .xian {
       background: #f2f2f2;
@@ -76,6 +78,7 @@
 
 .animation-map-drawer {
   width: 260px;
+  height: calc(100% - 80px);
 }
 
 /deep/.el-menu-item {