anchor.diff:          li.a-fzb-mill atom     (0.75/2.000)
           li.a-fzb-micr quark    (0.50/3.000)
         pre.
  -        &lt;li class="#[u a-fz-peta]"&gt;universe (6.00)&lt;/li&gt;
  -        &lt;li class="#[u a-fz-tera]"&gt;galaxy   (4.00)&lt;/li&gt;
  -        &lt;li class="#[u a-fz-giga]"&gt;star     (3.00)&lt;/li&gt;
  -        &lt;li class="#[u a-fz-mega]"&gt;planet   (2.00)&lt;/li&gt;
  -        &lt;li class="#[u a-fz-kilo]"&gt;asteroid (1.50)&lt;/li&gt;
  -        &lt;li class="#[u a-fz-norm]"&gt;molecule (1.00)&lt;/li&gt;
  -        &lt;li class="#[u a-fz-mill]"&gt;atom     (0.75)&lt;/li&gt;
  -        &lt;li class="#[u a-fz-micr]"&gt;quark    (0.50)&lt;/li&gt;
  -        #[small &lt;!-- alternate classnames --&gt;]
  -        &lt;li class="#[u a-fzb-hex]    "&gt;universe (6.00/0.250)&lt;/li&gt;
  -        &lt;li class="#[u a-fzb-tet]    "&gt;galaxy   (4.00/0.375)&lt;/li&gt;
  -        &lt;li class="#[u a-fzb-tri]    "&gt;star     (3.00/0.500)&lt;/li&gt;
  -        &lt;li class="#[u a-fzb-di]     "&gt;planet   (2.00/0.750)&lt;/li&gt;
  -        &lt;li class="#[u a-fzb-sesqui] "&gt;asteroid (1.50/1.000)&lt;/li&gt;
  -        &lt;li class="#[u a-fzb-norm]   "&gt;molecule (1.00/1.500)&lt;/li&gt;
  -        &lt;li class="#[u a-fzb-dodrans]"&gt;atom     (0.75/2.000)&lt;/li&gt;
  -        &lt;li class="#[u a-fzb-semi]   "&gt;quark    (0.50/3.000)&lt;/li&gt;
  +        &lt;li class="#[u a-fzb-[peta|#[mark hex]]]    "&gt;universe (6.00/0.250)&lt;/li&gt;
  +        &lt;li class="#[u a-fzb-[tera|#[mark tet]]]    "&gt;galaxy   (4.00/0.375)&lt;/li&gt;
  +        &lt;li class="#[u a-fzb-[giga|#[mark tri]]]    "&gt;star     (3.00/0.500)&lt;/li&gt;
  +        &lt;li class="#[u a-fzb-[mega|#[mark di]]]     "&gt;planet   (2.00/0.750)&lt;/li&gt;
  +        &lt;li class="#[u a-fzb-[kilo|#[mark sesqui]]] "&gt;asteroid (1.50/1.000)&lt;/li&gt;
  +        &lt;li class="#[u a-fzb-[norm|#[mark norm]]]   "&gt;molecule (1.00/1.500)&lt;/li&gt;
  +        &lt;li class="#[u a-fzb-[mill|#[mark dodrans]]]"&gt;atom     (0.75/2.000)&lt;/li&gt;
  +        &lt;li class="#[u a-fzb-[micr|#[mark semi]]]   "&gt;quark    (0.50/3.000)&lt;/li&gt;
     section#colors
       h2 Colors
       ul.-bc-w
  
positive.code:   section#font-sizes
      h2 Font Sizes
      p.
        The first list shows atoms prefixed #[code fz-], which change only font size,
        mainly used for inline (text-level) elements. These atoms use #[b em] units,
        so the font sizes will scale according to their parents.
        The second lists atoms prefixed #[code fzb-], for font-size/line-height combos,
        which are useful for maintaining vertical rhythm on block elements.
        These use #[b rem] units, which are absolute.
        Only the first list is demonsrated (the second will look exactly
        the same save the line height).
      p.
        Notice there are two pairs of classes for each size.
        The first classname has an
        #[abbr(title="Système International d’Unités" lang="fr") SI]
        prefix that corresponds to a power of 1000,
        while the second classname uses a Greek/Latin prefix that indicates
        the value of #[code font-size] in its definition.
        The first set is good for comparing two different atoms, and
        the second set is good for when you need to know the absolute size.
  
negative.code:         li.a-fz-norm molecule (1.00)
          li.a-fz-mill atom     (0.75)
          li.a-fz-micr quark    (0.50)
        pre.
          &lt;li class="#[u a-fz-[peta|#[mark hex]]]"&gt;universe (6.00)&lt;/li&gt;
          &lt;li class="#[u a-fz-[tera|#[mark tet]]]"&gt;galaxy   (4.00)&lt;/li&gt;
          &lt;li class="#[u a-fz-[giga|#[mark tri]]]"&gt;star     (3.00)&lt;/li&gt;
          &lt;li class="#[u a-fz-[mega|#[mark di]]]"&gt;planet   (2.00)&lt;/li&gt;
          &lt;li class="#[u a-fz-[kilo|#[mark sesqui]]]"&gt;asteroid (1.50)&lt;/li&gt;
          &lt;li class="#[u a-fz-[norm|#[mark norm]]]"&gt;molecule (1.00)&lt;/li&gt;
          &lt;li class="#[u a-fz-[mill|#[mark dodrans]]]"&gt;atom     (0.75)&lt;/li&gt;
          &lt;li class="#[u a-fz-[micr|#[mark semi]]]"&gt;quark    (0.50)&lt;/li&gt;
        ul.-sp-nw.-of-a
          li.a-fzb-peta universe (6.00/0.250)
          li.a-fzb-tera galaxy   (4.00/0.375)
  