body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

#container {
  display: flex;
}

#nav {
  width: 200px;
  height: 100vh; /* 100% of the viewport height */
  background-color: #ccc;
  padding: 15px;
}

#nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

#nav ul li {
  margin-bottom: 10px;
}

#content {
  flex-grow: 1;
  padding: 15px;
}

h1, p {
  margin: 0;
  padding: 10px 0;
}