src/views/Item/ItemContent.js
function ItemContent(props) {
  const { children, className, content, description, extra, header, meta, verticalAlign } = props

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

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

  return (
    <ElementType {...rest} className={classes}>
      {ItemHeader.create(header, { autoGenerateKey: false })}
      {ItemMeta.create(meta, { autoGenerateKey: false })}
      {ItemDescription.create(description, { autoGenerateKey: false })}
      {ItemExtra.create(extra, { autoGenerateKey: false })}
      {content}
    </ElementType>
  )
}
function ItemContent(props) {
  const { children, className, content, description, extra, header, meta, verticalAlign } = props

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

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

  return (
    <ElementType {...rest} className={classes}>
      {ItemHeader.create(header, { autoGenerateKey: false })}
      {ItemMeta.create(meta, { autoGenerateKey: false })}
      {ItemDescription.create(description, { autoGenerateKey: false })}
      {ItemExtra.create(extra, { autoGenerateKey: false })}
      {content}
    </ElementType>
  )
}
An item can contain content.