anchor.diff:              li Casing of CSS/Less classnames/mixins are #[a(href="naming-convention") discussed below].
               li Less variables always use under_score_lower_case, never hyphens.
               li Use lower-case-hyphens for filenames and folders only.
  +            li Lower case and shorthand hex color values (#[code #cf9], not #[code #CCFF99]).
               li
                 | In scripting (JS, PHP):
                 ul
  
positive.code:                 li any attributes starting with #[code data-]
                  li.
                    any other #[a(href="https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes") global attributes]
                    not on this list (such as #[code style], #[code title], #[code lang], etc.)
                  li.
                    any element-specific attributes
                    (such as #[code href], #[code src], #[code rel], #[code alt], etc.)
                  li
                    | microdata attributes in the following order:
                    ol
  
negative.code:             li.
                Always put spaces following colons (#[code :]) in CSS rules, and
                following semicolons (#[code ;]) when multiple CSS rules share a line and in inline styles.
              li Always use double-quotes for HTML attribute values&mdash;even one-word values and empty values
              li Always use the empty string for HTML boolean attributes (#[code checked=""]).
              li Always use single-quotes for all strings in CSS and JS, and for strings within HTML attribute values.
              li
                | In CSS and JS, use the #[a(href="https://en.wikipedia.org/wiki/Indent_style#Variant:_1TBS") 1TBS] brace style:
  