About filter groups

Filter groups set the bounds of a collection as well as text & titles that will be hidden if all the cards in that group are 'filtered out.'

To hide a collection, including title and text

Encompass the collection, title and text that will be hidden withing a style helper entitled ui-x-tag-filters-group.

{{#style "ui-x-tag-filters-group"}} 
## Markdown Group (starts just above this subheading)

This whole section, together with the title, should be hidden when all the cards in the Markdown group are filtered out.

Do so now by clearing all filters and then selecting `dita group` in the filter drop-down.

{{#style "whatsnew-collection-list"}}
add-filtering-tags-md,
add-filtering-to-a-collection-md,
add-filtering-md,
add-filtering-group-md
{{/style}} 

{{/style}}