.btn{padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-size:14px;transition:background-color .2s;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;color:#fff}.btn:hover:not([disabled]){opacity:.9}.btn:disabled{cursor:not-allowed;opacity:.7}.btn.btn-primary{background-color:#007bff}.btn.btn-success{background-color:#28a745}.btn.btn-secondary{background-color:#6c757d}