<p>Atlas supports four different markup languages: HTML, markdown, asciidoc, and docbook. To use the Visual Editor, write your project in HTML making sure to adhere to the HTMLBook spec, or just use the Visual Editor right from the beginning (it already follows the HTMLBook rules).</p>
<p>What is a section?</p>
<p>An integral part of the HTMLBook spec is the concept of sections. </p>