A direct child of a grid container is blockified per CSS Display 3, so an
inline <a>/<time>/<span> becomes its own block-level grid item instead of
being flattened into loose words in the container (which shattered grid
lists like jvns.ca's .article-list of alternating <time>/<a> into one word
per cell). Grid only, not flex, since flex-column is also our block
stand-in for <td>.
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