.el-container .l-chat-box{display:flex;flex-direction:column;border:1px solid #ddd;background:#fff;width:3rem}.el-container .l-chat-box .l-chat-header{padding:5px;background-color:#fff;line-height:50px}.el-container .l-chat-box .l-friend-ist{flex:1}.el-container .r-chat-box-mask{position:fixed;height:100vh;width:100vw;top:0;left:0;background-color:r}