body, html {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: #f8f9fa;
}

.container {
  flex: 1;
  padding: 20px;
}

footer.footer {
  background-color: #212529;
  color: white;
  text-align: center;
  padding: 10px;
}