How to use markdown in HTML tags

Markdown Official Document 1 There is a sentence:

Note This markdown formatting syntax is not processed within block-level HTML tags. e.g., you can ' t use markdown-style emphasis inside a HTML block.

Markdown can not be written in block-level HTML tags, that is, we do not write the following:

<div>
* * * I * * * * *
</div>
* * does not resolve to <strong></strong>.

But I am in the WordPress backstage uses the markdown plug-in PHP markdown Extra2 extends this function, may write this:

<div markdown= "1" >
* * * I * * * * *
</div>
The following are the output results:

<div>

<p><strong> Bold I </strong></p>

</div>
The reason why I want to use this function is to add Microdata3. Take my reading page and say, now this is the markdown part:

Time | title | author
---|---|---
2013.1.27| | Shakespeare
The portrait of 2013.1.28| Dorian | Oscar Wilde
The HTML for adding microdata is as follows:

<div itemscope itemtype= "Http://schema.org/Table" >

<!--table contents in this-->
</div>
With the help of PHP markdown Extra, you can embed markdown in a div block:

<div itemscope itemtype= "http://schema.org/Table" markdown= "1" >

<!--markdown form in this-->
</div>
In this way, I will add microdata to my form.