Hey there,
I am trying to replicate the dashboards from the user guide (https://dash.plot.ly/getting-started). According to the guide, adding
app.css.append_css({"external_url": "https://codepen.io/chriddyp/pen/bWLwgP.css"}) to the code should give a differently rendered output, but on my computer it just does not work.
I tried to add app.css.config.serve_locally = True and app.scripts.config.serve_locally = True for offline / firewall usage, but nothing changed.
This is how my table looks like:
Thank you very much for your help in advance 
Zoe