this is page 2
==============

.. note:: note exmpale

    this is a note example on *Nowhere*

.. warning:: 

    this is a warning box. 

.. error::

    an **error** message

.. admonition:: custom title

    this is a custom block.


.. code-block:: bash

    echo "welcome"

.. code-block:: python

    import os

.. tabs:: lang

    .. code-tab:: python

        print("a python code")
        print("add a new line")

    .. code-tab:: bash 

        echo "testing"