In my website, I want to add online books. On left hand side, chapter titles will be displayed. As the user clicks on a chapter, it expands and lists of sections are displayed underneath it. When the user clicks on a section, then on the right pane, the content of that section is displayed. The content may have anything - text, graphics, audio, video, animation, interactive form.

What tool will be easiest for it? Should I go for moodle/joomla/drupal/wordpress or something else?