The blog template, on an article
The same blog class as the index: what changes is
that the page fills the aside slot, so the shell turns the rail on and lays the article out
as prose plus a sticky column — summary, author, sharing.
The markup
A region a page does not fill is not a region: it is the aside slot alone that decides
whether this page has one column or two.
…
What it shows
- the prose column, on the serif family the tokens name for reading
- the sticky rail, which becomes a block under the article on a small screen
- the same header and footer as the two other editorial pages