.alert {
  color: white;
  margin-bottom: 15px;
}
.alert .blue {
  background-color: #2196f3;
  padding: 20px;
}
.alert .green {
  background-color: #298f4b;
  padding: 20px;
}
#sent_mail {
  display: none;
}
#success_mail {
  display: none;
}
#sent_newsletter {
  display: none;
}
#success_newsletter {
  display: none;
}