generated_files.css in Module Builder 8.3

/**
 * Layout for the generates_files form element.
 */
.generated-files {
  display: grid;
  grid-template-columns: auto 80ch;
}

.generated-files ul {
  padding: 0;
  margin: 0;
}

.generated-files li {
  display: flex;
}

.generated-files .form-item {
  margin: 0.25em 0;
}

.generated-files li label {
  flex-grow: 1;
}