w3c validation Error Element div not allowed as child of element button in this context.

[robertmausser]

From line 306, column 899; to line 306, column 937
d="false"><div class="accordion-item__btn-inner"><div c
Contexts in which element div may be used:
Where flow content is expected.
As a child of a dl element.
Content model for element button:
Phrasing content, but there must be no interactive content descendant and no descendant with
the tabindex attribute specified.