In our Asciidoc markup we can include delimited blocks, like sidebars, examples, listings and admonitions. A delimited block is indicated by a balanced pair of delimiter characters. For example a sidebar starts and ends with four asterisk characters (****). If we want to nest another delimited block of the same type we must add an extra delimiter character at the start and end of the nested block. So when we want to nest another sidebar block inside an existing sidebar block we must use five asterisk characters (*****).

In the following example Asciidoc source we have several blocks with nested blocks:

== Nested sidebar

[sidebar]
.Sidebar
****
This is just an example of how
// Start nested block with extra *
*****
a nested delimited block
*****
can be defined.
****


== Nested example block

.Nested example
====
Also the example delimited block
// Start nested block
=====
allows nested blocks
======
and nested blocks
======
=====
to be defined.
====

== Nested admonition block

[NOTE]
====
We can nest
[TIP]
=====
adminition blocks
=====
as well.
====

== Mixing delimited blocks

[NOTE]
====
Of course we can also define
****
another delimited block
*****
with nested block
*****
****
inside delimited blocks.
====

If we transform this to HTML we get the following result:

Written with Asciidoctor 1.5.2.

Original article