Merge pull request #599 from jeff1evesque/scss_style

#595: Ensure 'jquery validation' messages position
#598: html_form.js, add 'form_note' classname
Merge pull request #600 from jeff1evesque/js_html_form

#598: html_form.js, add 'form_note' classname
#595: style.scss, implement ':first-of-type', remove suffix classnames