Fill a grid perfectly depending on the number of items, to create varying layouts.
In this demonstration, the collection list might have 1, 2, or 3 items.
See the Code Embed at the bottom of the page for the custom CSS needed to achieve this variable layout.
In a single item situation, we'll do 2 x 2 span.
When two items appear in the list, we'll do 1 x 2 spans.
In a 3-item situation, we'll do 1 x 2 span on the first item, and 1 x 1 on the others.
