css collision with ipywidgets

[maartenbreddels]

Describe the bug

context When I render an ipywidget into a myst markdown cell, it shows white.

expectation I expected it to look 'normal', meaning grey.

Reproduce the bug

import ipywidgets as w
b = w.Button(description="Click")

Markdown

Click me {eval}`b`

List your environment

No response

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[maartenbreddels]

For reference, this is what I see in the dev console:

Either myst should be less specific, or jupyter-widgets should be more specific, I'm not sure about that.

cc @jasongrout

[rowanc1]

We did a big push last week on improving styles and CSS compatibility, thanks for reporting! Still lots to do. 🚀