.splitter-container{display:flex;height:400px;border:1px solid #e0e0e0;border-radius:8px;overflow:hidden}.panel{flex:1 1;padding:20px;background-color:#FFFFFF}.splitter-bar{width:8px;background-color:#E0E0E0;cursor:col-resize;transition:background-color .3s ease}.splitter-bar:hover{background-color:#000000}