style: 历史消息

src/views/ChatHistory.jsx

@@ -196,7 +196,7 @@ function ChatHistory() {
   };
   const loadMorePre =
     paramsForMsgList.loadPrePage && chatItemMessages.length > 0 ? (
-      <div className='text-center pt-3 mb-3 h-8 leading-8 border-dotted border-0 border-t border-slate-300'>
+      <div className='text-center h-8 leading-8 '>
         {messageListPreLoading ? <LoadingOutlined className='text-primary' /> : <Button onClick={onLoadMorePre}>load more previous </Button>}
       </div>
     ) : null;