v1/vendor/chi-teck/drupal-code-generator/templates/field/widget-css.twig

{% set class = field_id|u2h ~ '-elements' %}
{% if inline %}
.container-inline.{{ class }} .form-item {
  margin: 0 3px;
}
.container-inline.{{ class }} label {
  display: block;
}
{% else %}
tr.odd .{{ class }} .form-item {
  margin-bottom: 8px;
}
{% endif %}