Remove quiet helptext

This was not on the prototype and nobody in user research had difficulty understanding that they should enter an address.
Remove full stop

I don't think 'Select the email alerts you need' is a sentence so, so removing this.
Removing unused class
Give the legend some bottom padding
Use .checkbox not a pseudo selector

Pseudo selectors don't work in IE6 so this page was pretty borked. Using a checkbox class instead.
Add color for legend which is blue(?) otherwise in ie6/7
Get rid of display:block

The block-label class is getting it blockness as a consequence of being floated left, so we don't need to explicitly state it with display:block too
Use colours from the frontend toolkit instead of hex
Use $gutter values from frontend toolkit
Add in mobile styles for form

- Move max-width restriction into media query so mobile has a full width form
- Make checkbox labels full width on mobile
remove newline