html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

body {
    display: flex;
    flex-direction: column;
    background-color: #333;
}

#root {
    flex: 1;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
}