Markdown with HTML blocks?

#1

Is it possible (in v5) to enable support for Markdown parsing within HTML blocks, either automatically or using Markdown Extra’s syntax like this?

<div markdown="1"  class="my-css-class">
Hello world. I _love_ using StackEdit! It would also be nice to mix and match Markdown and HTML <em>within the same block</em>.
</div>
Disable HTML Sanitzation?
#2

I do this and it just doesn’t render in the StackEdit preview pane properly (it stays raw) but if you are publishing somewhere that supports this, it will work as expected on the published piece.