What does XML look like?

XML looks like HTML but is NOT HTML.

<page id="acronym">
    What does <acronym>XML</acronym> stands for?
  <para>eXtensible Mark-up Language. 
    These are some more precision, in reverse order:</para>
  <para>This is another piece of text 
    for the needs of that presentation.</para>

What we generally see of XML is its flat version. Indeed XML data is structured like a tree. The root element being here <page>...</page>. One must always keep in mind the tree structure of an XML document. It is another key of XML data. Here, the element <title>...</title> is not simply a <title>, but a children of <page> and the first preceding sibling of <para>...

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