Add 'Line' to Primary/Bannered Campaign Pages with no sub-nav

[beccaklam]

We want to add a line for a visual break/centering purposes on both full width and narrow templates of the Primary/Bannered Campaign pages with no sub nav. Currently it looks a bit awkward without it.

Related tickets: #3022
Redpen is here: https://redpen.io/p/ys4594fedace293c98

Current:

Mobile:

Spacing is 24px above and below line

Tablet:

Spacing is 48px above and below line

Desktop:

Spacing is 48px above and below the line

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[mmmavis]

Blocked by PR #3025 #3049

[mmmavis]

We want to add a line for a visual break/to help the user center text on a narrow template on Primary/Bannered Campaign pages with no sub nav. Currently it looks a bit awkward without it.

@beccaklam since the gap in between the heading section and main content is kinda huge, I'm wondering if we should add divider line to both wide & narrow templates?

[beccaklam]

@mmmavis yes we want the line on both wide and narrow templates. Sorry just reworded my ask!

[mmmavis]

Fixed as part of PR #3025.