Dash Table is looking bad

Dear all,

I recently discovered Dash, and enjoyed it so far from my small toy project.
I am now trying to do something a bit more useful based on data that I can load as a panda dataframe.
Unfortunately, when rendering the df with

import plotly.figure_factory as ff
import dash_core_components as dcc
dcc.Graph(figure=ff.create_table(df, index=True))

Then I end up with something really bad:

Do you know what I can do to make the table to look nicer ?
For instance, may the graph be rendered in a separate html frame, that allow for navigation bars ?

Thank you in advance for your help