.btn-secondary { color: #fff; background-color: #5a1e63 !important; width: 100%; max-width: 330px; padding: 15px; margin: auto; } .input-group.mb-3 { width: 50%; max-width: 330px; padding: 15px; margin: auto; display: flex; flex-direction: row; } ;h4 { color: black; font-weight: bold; }