[x/go.dev] footer: fix margins in second footer
[x/go.dev] footer: fix margins in second footer

Change-Id: Iceec061c9e3ef5a999581c9bf83f3812f3bfde27

X-GoDev-Commit: e51238aedc2bfd99433c33dacf21f6b82034eaa4

golang/website,golang/website,golang/website,golang/website,golang/website,golang/website,golang/website