.btn-primary {
  color: #fff;
  background-color: #007bff;
  border-color: #007bff;
}

.btn-outline-primary {
  color: #007bff;
  border-color: #007bff;
}

header {
  padding: 15px;
}

footer {
  text-align: center;
}

.logo {
  max-width: 100%;
}

main {
  padding: 15px;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.main_text {
  padding: 0 0 15px;
}

.required {
  color: red;
}

.error {
  color: red;
}