The buttons on the install guide page don't work on a small screen

[Rob Cresswell]

Open https://docs.openstack.org/pike/install/ and make the viewport < 1200px. You'll notice the big blue "OpenStack Installation Guide" button doesn't work, and each of the project links also don't work.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/548051

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/548051
Committed: https://git.openstack.org/cgit/openstack/openstack-manuals/commit/?id=2b9b3546c000176b74cd640787ae9450817e8bfb
Submitter: Zuul
Branch: master

commit 2b9b3546c000176b74cd640787ae9450817e8bfb
Author: Rob Cresswell <email address hidden>
Date: Mon Feb 26 15:11:54 2018 +0000

    Fix the install guide buttons on small screens

    This patch fixes the nesting on the rows on the install guide
    index page, that were causing all of the links to be covered on
    smaller screens.

    Unfortunately the high line count change is really required to
    make the change easy to understand, as otherwise the indentation makes
    it very difficult to notice the incorrect nesting (and probably caused
    the bug in the first place).

    Closes-Bug: 1751810
    Change-Id: Id4e7ddf9d46d6e1a7f81a88047bb6778453cc9b8