body {
  display: flex;
  // use this if navbar is fixed
  min-height: calc(100vh - 52px);
  flex-direction: column;
  background-image: url("36129.webp");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
}

.main {
  flex: 1;
}

.navbar {
  display: flex;
  align-content: center;
  justify-content: center;
}

footer {
  padding: 1rem 1rem 1rem !important;
  background-color: transparent;
}