#!/usr/bin/env python
# coding: utf-8

# In[ ]:


flex_source_code = "https://github.com/danielfrg/jupyter-flex/blob/master/examples/layouts/section-tabs-columns.ipynb"


# ## Column 1

# ### First

# In[ ]:


1


# ### Second

# In[ ]:


2


# ## Column 2

# ### A

# In[ ]:


"A"


# ### B

# In[ ]:


"B"


# ### C

# In[ ]:


"C"