[Forwardport] Adjust page-main container height for sticky footer; fixes #15118#17809

Merged

magento-engcom-team merged 1 commit intomagento:2.3-developfrom nmalevanec:2.3-develop-PR-port-17006

Sep 4, 2018

+20-19

Commits on Aug 27, 2018

Adjust page-main container height for sticky footer; fixes #15118

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