Indentation
===========

This is a top-level paragraph.

   This paragraph belongs to a first-level block quote

      This paragraph belongs to a second-level block quote.

Another top-level paragraph.

         This paragraph belongs to a third-level block quote.

      This paragraph belongs to a second-level block quote.

   This paragraph belongs to a first-level block quote. The second-level block
   quote above is inside this first-level block quote.

Another top-level paragraph.

   A paragraph should be able to handle other block types. For example a list:

   - First item.
   - Second item.
   - Third item.

   Content should be properly spaced.