body {
  background: #f8f9fa;
}

#logo {
  margin: 2rem auto;
  width: 300px;
}

#user_form {
  width: 500px;
  max-width: 95%;
  background: #fff;
  margin: 0 auto 20px;
  border-radius: 1rem;
  padding: 2rem;
  border: 1px solid #dee2e6;
}
#user_form h1 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}