3x-ui/frontend/src/pages/xray/outbounds/OutboundFormModal.css

.item-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-weight: 500;
  opacity: 0.85;
}

.sniffing-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.sniffing-options .ant-checkbox-wrapper {
  margin-inline-start: 0;
}