Example correction on levels.js - :last-of-type

p span:last-of-type selects the last span, not the first
Added margin on level list. Causes active level to not overlap with toggle button.
Fixed board syntax with a few levels. (No visible change, but may prevent future issues)
Enabled users to preceed their answers with the div.table parent element. See code note for details.
Merge pull request #45 from Nessworthy/patch-1

Example correction on levels.js - :last-of-type
Merge pull request #46 from Nessworthy/master

Minor QoL fixes over a lunch break.