This is a prototype of a table that allows the user to add more rows by activating a button. When the button is activated, more rows are shown and focus moves to the first of the new rows. aria-expanded is then set to true on the button itself.
| col1 | col2 | col3 | |
|---|---|---|---|
| foo1 | foo2 | foo3 | |
| foo4 | foo5 | foo6 | |
| foo7 | foo8 | foo9 | |
| first of new rows | bar1 | bar2 | |
| bar3 | bar4 | bar5 | |
| bar6 | bar7 | bar8 | |