.contact .php-email-form .form-submit {
  background: #F5323B;
  border: 0;
  padding: 10px 30px;
  color: #fff;
  transition: 0.4s;
  border-radius: 4px;
}

.contact .php-email-form .form-submit:hover {
  background: #3b8af2;
}