• The objective is to add an efficient way for the author to include question and answer capabilities in articles.
• The association between the question and the answer should be clear to the author, the reader, and the computer.
• The reader should have the answer hidden by default with the possibility to make it visible.
• For a given article, there should be a way to make all answers visible or hidden.

An author may add a question/answer element just like any other HTML element using this markup:

The UUIDs are generated: the author does not have to care about them. Rendered into the page, we have:

The association between question and answer is clear to:

• the author since there is x-qa markup that explicitly defines the associations;
• the reader since one appears just after the other and reacts to the show and hide buttons;
• the computer since the x-qa markup is parsed where the first leaf is the question and others are answers. The association is made independent of human interpretations thanks to the UUIDs.