Clear display in jupyter notebooks

In order to display a message and then later on, remove it and replace it with another html message.

from IPython.core.display import display, clear_output
from IPython.core.display import HTML

...

display(HTML('<span style="font-size: 20px; color:blue">Work in progress ... </span>'))

...

clear_output(wait=False)
display(HTML('<span style="font-size: 20px; color:blue">Done!</span>'))