Hi, Mark

I can't seem to get any rows to appear from my end when I visit the related page - no matter what I choose in the filters,

so I can't work directly on your page to try and find some CSS for you :

But I have an example that we generally made for the little  + expander button :

You can use this CSS on the page:

table.has-columns-hidden>tbody>tr>td>span.responsiveExpander, table.has-columns-hidden>tbody>tr.detail-show>td span.responsiveExpander {
padding: 10px !important;
}

And it will increase the size of that button.

-

For background color, try this :

table.has-columns-hidden > tbody > tr > td > span.responsiveExpander{
    background-color : green !important;
}

This is how my table looks with the CSS :

You can add this to the table custom CSS, in Customize tab, of the table settings, and it should work.

Let me know if that works for you.

If not, please let me know how I can get some rows to appear on your table, so that I can work directly on the page to try out some CSS?

Thank you