Add 30px of spacing to the right of the editor
Add 30px of spacing to the right of the editor

Test Plan:
 * open test.html
 * make sure the question, answer, and hints all have
   30px of whitespace to their right

Auditors: brianmerlob

sachgits/perseus,huangins/perseus,ariabuckles/perseus,alexristich/perseus,daukantas/perseus,abe4mvp/perseus,chirilo/perseus,sachgits/perseus,huangins/perseus,junyiacademy/perseus,iamchenxin/perseus,ariabuckles/perseus,chirilo/perseus,abe4mvp/perseus,learningequality/perseus,learningequality/perseus,daukantas/perseus,ariabuckles/perseus,ariabuckles/perseus,alexristich/perseus,junyiacademy/perseus,iamchenxin/perseus