*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:#111;color:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;height:100vh;overflow:hidden}#root{height:100vh;display:flex;flex-direction:column}button:disabled{opacity:.4;cursor:default}button{cursor:pointer}