html,
body {
  margin: 0;
  padding: 0;
  overscroll-behavior: none;
  background-color: rgb(64, 64, 64);
}

#container {
  display: flex;
  flex-direction: row;
}

#nav {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  gap: 1rem;
  padding: 16px;
  margin: 0;
  box-sizing: border-box;
  width: 360px;
  height: 100vh;
  background-color: lightgray;
  z-index: 10;
}

#nav>* {
  width: 100%;
}

#main {
  display: flex;
  flex-direction: column;
  padding: 0px;
  margin: 0;
  flex-grow: 1;
  min-width: 0;
  height: 90vh;
  background-color: rgb(64, 64, 64);
  align-items: center;
  justify-content: center;
}

canvas {
  display: block;
}