.app-panel{position:fixed;left:0;top:0;width:var(--panel-width);height:100vh;padding:16px;overflow-y:auto;box-shadow:2px 0 8px #0000001a;box-sizing:border-box}.app-content{display:flex;flex-direction:column;justify-content:center;height:100vh;margin-left:var(--panel-width);overflow:auto;box-sizing:border-box}.a3d-viewer{width:100%;height:100%;margin:0}:root{--panel-width: 250px}html,body{margin:0;padding:0;height:100%}div#root{height:100%;width:100%;display:flex;flex-direction:column}