anchor.diff:                Examples include the Media Object, the Nav Abstraction, and the Island Object.
                 These classes do not affect look-and-feel, only visual structure. Think back to
                 the #[b Layout] and #[b Box Structure] levels of the inverted CSS property triangle above.
  +              Object-Oriented CSS is where it all started.
             section
               h4 Components
               p: strong.
  
positive.code:               Theme classes are very tricky. A Theme applied to an element might not only affect
                the element itself, but will also probably affect its descendants. This gets complicated
                because the said descendant&rsquo;s style becomes dependent on its location.
                Move the element, or change the Theme, then the element will look different.
                (This could be a good or a bad thing.)
                We must be careful not to let the element&rsquo;s style depend heavily on the
                Theme classes of its ancestors. Thus we should limit the styles in a Theme class
                to those belonging in the #[b Box Cosmetics] and #[b Text Cosmetics] levels
                of the inverted triangle. Most themes only affect font family, color, and the like.
            section
              h4 Helpers
              p: strong.
                #[dfn#helper Helpers] are somewhat explicit classes used for enhancing default styles.
              p.
                When an element already #[i instantiates] Objects and Components (has their classes),
                but you need a little bit more, a Helper class is the solution.
                Helpers tack on a very small combination of extra styles to achieve a specific look.
                The clearfix is an excellent example. Even though it affects structure, it doesn&rsquo;t
  
negative.code:           every time, whereas hopefully your stylesheet will have been downloaded only once
            and then cached.
        section.c-Document__Complete
          h2.-fs-i.-fv-i.-fw-i.-sp-nw
            b.-fw-9 class&middot;i&middot;tis
            | &nbsp;(kl&aelig;s-a&#x026a;&apos;t&#x0258;s)&nbsp;
            abbr.-fs-t(title="noun") n.
          p.
            No, I&rsquo;m not talking about an overuse of classes&mdash;I don&rsquo;t
  