#login_form {
  margin-top:100px;
  display:flex;
  flex-direction: column;
  align-items:center;
}
#login {
  margin-top:50px;
}
h1 {
  margin-bottom:50px;
}

a {
  text-decoration: none;
  color:black;
}
.form-control.is-invalid, .was-validated {
  background-image:none;
}