anchor.diff:  In addition to the above base selectors, a few selectors are provided that are
   useful shortcuts for special attributes:
   
  -Data name attribute selector: `;name-data`::
  -  The data name attribute selector matches any element that has `name-data` as
  +Data name attribute selector: `;custom-name`::
  +  The data name attribute selector matches any element that has `custom-name` as
     the value of its `data-name` attribute. For example, you can use `;user-info`
     to match an element `<ul data-name="user-info">...</ul>`.
   
  
positive.code: ====
  
  These examples show a few options:
   - You can select by element name or by class name. More available selectors are
     in the section below on <<available-selectors>>.
   - You can set the body of an element, an attribute of an element, or even
  
negative.code:   The universal selector matches any element.
  
  Root selector: `^`::
    The root selector matches elements at the root level of the `NodeSeq` being
    transformed. For example, you can use `^` to match both the `header`
    and `ul` elements in the HTML `<header id="page-header">...</header><ul
    ng-model="user">...</ul>`.
  