Standard page styling
Fix markdown layout
Add missing 'type' attribute
Add correct links to service standard
Add guidance links and aria labels
Fix missing closing </header> tag
Wrap intro in div for styling
Style intro & list headers
Update service standard links
Update standard support
Update standard links
Make dbd logo resize at different screen sizes
Merge pull request #90 from alphagov/service-standard-support

Style the standard

Rebased against master to get it to merge.