label.col-form-label.text-primary { font-size: 16px; margin-left: 20%; font-weight: bolder; } .form-control { width: 60%; margin-left: 20%; } form { padding-top: 10%; } button.btn.btn-primary { font-size: 18px; font-weight: bold; padding: 15px 15px; width: 30%; margin-left: 35%; margin-top: 7%; }