@aws-amplify/ui/dist/styles/checkboxField.css

`@aws-amplify/ui` contains low-level logic & styles for stand-alone usage or re-use in framework-specific implementations.

.amplify-checkboxfield {
  align-content: var(--amplify-components-checkboxfield-align-content);
  align-items: var(--amplify-components-checkboxfield-align-items);
  flex-direction: var(--amplify-components-checkboxfield-flex-direction);
  justify-content: var(--amplify-components-checkboxfield-justify-content);
}