anchor.diff:            h3 Indentation
             ul
               li Use exactly two (2) spaces for each indent level.
  -            li.
  -              Each nested HTML element is indented one level and on its own line,
  -              except inline-level elements, which can be written inline with text.
  -            li Each nested CSS property should be indented one level and on its own line (excpetions permitted).
           section
             h3 Line Length
             ul
               li Keep lines of all code between 75&ndash;90 characters long to maximize readability.
           section
  -          h3 Examples
  +          h3 HTML Specifics &amp; Example
             figure: pre.
  -            &lt;p&gt;Block-level elements get their own line.&lt;/p&gt;
  +            &lt;p&gt;99% of the time, block-level elements get their own line.&lt;/p&gt;
               &lt;div&gt;
                 &lt;p&gt;Use line breaks and indentation within elements to separate blocks.&lt;/p&gt;
                 &lt;p&gt;Line length is kept around 75–90 chars.&lt;/p&gt;
  
positive.code:              */
  
              /* Use this format for a single line if there&rsquo;s no inline syntax. */
          section
            h3 Usage
            p.
  
negative.code:     meta(charset="utf-8")
      meta(name="viewport" content="width=device-width, initial-scale=1")
      link(rel="stylesheet" href="styles/styleguide.css")
      style.
        table.demo {
          margin-left:  1rem;
          margin-right: 1rem;
        }
        table.demo th,
        table.demo td {
          padding: 2px;
          border: 1px solid #888;
        }
    body
      main(itemscope="" itemtype="https://schema.org/Article")
        header
  