#appContainer{display:flex;height:100vh;overflow:hidden;margin:0;padding:0}#sideStyleNavBar{width:25%;max-width:300px;min-width:200px;background-color:#f0f0f0;padding:1rem;box-sizing:border-box;border-right:1px solid #ccc;overflow-y:auto}#contentPanel{width:75%;flex:1;padding:1rem;overflow-y:auto;box-sizing:border-box}#sideStyleNavBar ul li{cursor:pointer;padding:8px;border-radius:4px;margin-bottom:5px}#sideStyleNavBar ul li:hover{background-color:#ddd}