I haven't removed the gray bars but I have made other customizations to
Jupyter notebooks with Nikola. What you want to do involves Jupyter's
nbconvert utility, not Nikola.

Looking at the nbconvert <https://github.com/jupyter/nbconvert> project on
Github, I see some things changed with templating within the past month or
so. Still, the following is probably still accurate.

The nbconvert utility uses Jinja templates to convert the notebook's JSON
file to HTML. (or to LaTeX, for a PDF). You can customize those templates
to do whatever you want. Once you create your custom template, you'll need
to instruct Nikola to use it.

In my conf.py file I have this:

IPYNB_CONFIG = {'Exporter': {'template_file': 'ipynb_themes/alt_basic.tpl'}}

In that tpl file I have this:

{% extends 'basic.tpl' %}

{% block data_png scoped %}
<div class="output_png output_subarea {{ extra_class }}">
{%- if 'image/png' in output.metadata.get('filenames', {}) %}
....etc

The basic.tpl template converts a Jupyter notebook to an HTML fragment that
can be placed into a Nikola page or post. By default, Nikola uses Jupyter's
basic.tpl template file, but I wanted to override a few things for how it
handled images.

It would be helpful to you to find Jupyter's basic.tpl file. You'll need to
find where the gray bar comes from and override that block.

It used to be here:

https://github.com/jupyter/nbconvert/tree/master/nbconvert/templates

But they refactored it and I don't have time to track it down. When you
figure it out, please let me know.

This page would probably be useful:

https://github.com/ipython/ipython/wiki/Cookbook:-nbconvert-templates

Alternatively, you also might be able to add something to your custom.css
file. That wouldn't work for all notebook customizations though.

-Jim


On Thu, Nov 28, 2019 at 9:11 PM John Drake <[email protected]> wrote:

> Has anyone have any success with this?
>
> I don't really know css but would love to know how to make that grey box
> disappear.
>
> Using a custom bootswatch theme (Yeti) with my webpage.
>
> Thank you!
>
> On Wednesday, January 16, 2019 at 3:37:01 PM UTC-5, bishop_gate wrote:
>>
>> thanks i'll try that
>>
>> On Wednesday, 16 January 2019 14:59:03 UTC-5, Roberto Alsina wrote:
>>>
>>> You would have to create some CSS rule and add it to your custom.css
>>>
>>> On Tue, Jan 15, 2019, 21:38 bishop_gate <[email protected]> wrote:
>>>
>>>> Hi,
>>>>
>>>>
>>>> How do I remove the grey bars next to my jupyter notebooks as they are
>>>> taking up valuable real estate on the web page?
>>>>
>>>> thanks
>>>>
>>>>
>>>>
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