.splitter-container{border:1px solid #e0e0e0;border-radius:8px;height:400px;display:flex;overflow:hidden}.panel{background-color:#fff;flex:1;padding:20px}.splitter-bar{cursor:col-resize;background-color:#e0e0e0;width:8px;transition:background-color .3s}.splitter-bar:hover{background-color:#000}