Adjust margins for single-question's in a practice task
Adjust margins for single-question's in a practice task

Test Plan:
Pass show_sat_mvp gandalf bridge
Visit /mission/sat/library
Click the first skill (should be math)

Before:
https://s3.amazonaws.com/uploads.hipchat.com/6574/17223/8AsoimeOrHUP5dL/upload.png

After:
https://s3.amazonaws.com/uploads.hipchat.com/6574/17223/1KLt648mPtIXLNR/upload.png

Note that the top margin is 80px now.

Fiddling with sat-missions-package/components/dashboard-library.jsx and change the "math" domain to "reading-and-writing".
Visit /mission/sat/library
See reading/writing skills
Click on one
Note the 48px spacing on top!

https://s3.amazonaws.com/uploads.hipchat.com/6574/17223/mlyPNnI0PSexbQ7/upload.png

TODO: extend gray bg color leftward, in another diff outside of perseus land

Reviewers: johnsullivan

Reviewed By: johnsullivan

Subscribers: aria, #sat

Differential Revision: https://phabricator.khanacademy.org/D16247

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