(2) HTML table with aria-details attribute (on a parent div element, to avoid redundant screen reader announcements on every table cells), which points to an immediately-following details element

My data table
cell 1 cell 2 cell a cell b
cell 3 cell 4 cell c cell d
cell 5 cell 6 cell e cell f
cell 7 cell 8 cell g cell h
Description This is the table description (any HTML markup is valid here).