CDATA section Nodes

• Represents a CDATA section like this example from a hypothetical SVG tutorial:

  <p>You can use a default <code>xmlns</code> attribute to avoid 
  having to add the svg prefix to all your elements:</p>
       <![CDATA[
         <svg xmlns="http://www.w3.org/Graphics/SVG/SVG-19991203.dtd" 
              width="12cm" height="10cm">
           <ellipse rx="110" ry="130" />
           <rect x="4cm" y="1cm" width="3cm" height="6cm" />
         </svg>
       ]]>      
  

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