src/elements/List/ListContent.js
function ListContent(props) {
  const { children, className, content, description, floated, header, verticalAlign } = props

  const classes = cx(
    useValueAndKey(floated, 'floated'),
    useVerticalAlignProp(verticalAlign),
    'content',
    className,
  )
  const rest = getUnhandledProps(ListContent, props)
  const ElementType = getElementType(ListContent, props)

  if (!childrenUtils.isNil(children)) {
    return (
      <ElementType {...rest} className={classes}>
        {children}
      </ElementType>
    )
  }

  return (
    <ElementType {...rest} className={classes}>
      {ListHeader.create(header)}
      {ListDescription.create(description)}
      {content}
    </ElementType>
  )
}
function ListContent(props) {
  const { children, className, content, description, floated, header, verticalAlign } = props

  const classes = cx(
    useValueAndKey(floated, 'floated'),
    useVerticalAlignProp(verticalAlign),
    'content',
    className,
  )
  const rest = getUnhandledProps(ListContent, props)
  const ElementType = getElementType(ListContent, props)

  if (!childrenUtils.isNil(children)) {
    return (
      <ElementType {...rest} className={classes}>
        {children}
      </ElementType>
    )
  }

  return (
    <ElementType {...rest} className={classes}>
      {ListHeader.create(header)}
      {ListDescription.create(description)}
      {content}
    </ElementType>
  )
}
A list item can contain a content.