.close-cta is text-align:center, so an inline-flex row flowed onto the same line
as the CTA button and pushed the whole group off-centre. flex + max-width 34rem +
margin auto puts it under the button as a centred block, with the hairline above
it spanning the row rather than the section.
Caught by looking at the deployed page rather than trusting the markup.
site.css?v= -> 14.
admin
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