#topbar {
  position:fixed;
  width:100%;
}

#wrapper {
  padding-top:3rem;
  display:flex;
  height:100vh;
}

#sidebar {
  padding-top:1rem;
  width:18rem;
  h1 {
    text-align:center;
    padding-bottom:.5rem;
  }
}

#page {
  flex-grow:1;
}

#content {
  max-width:800px;
  margin:auto;
}