更新

@@ -3,7 +3,8 @@
     <div class="header">
       <span class="member-count text-ellipsis">群成员：{{ currentConversation.groupProfile.memberCount }}</span>
       <popover v-model="addGroupMemberVisible">
-        <add-group-member class="add-member-list" :group="currentConversation.groupProfile.groupID"/>
+        <add-group-member style=" width: 200px; max-height: 50vh; overflow: auto"
+                          :group="currentConversation.groupProfile.groupID"/>
         <div slot="reference" class="btn-add-member" title="添加群成员">
           <span class="tim-icon-friend-add"></span>
         </div>
@@ -93,11 +94,6 @@ export default {
     padding 10px 16px 10px 20px
     border-bottom 1px solid $border-base
 
-    >>> .add-member-list
-      width: 200px;
-      max-height: 70vh;
-      overflow: auto
-
     .member-count
       display inline-block
       max-width 130px