Is it possible to set full-width on tabbed sections?

Describe the problem

Hi there! Imagine I’m trying to list installation instructions for package across operating systems. I’m using tabbed sections like so (sorry in advance, getting this to render in GitHub wasn’t easy):

    ````{tabbed} Ubuntu
    things for Ubuntu
    ````
    ````{tabbed} macOS
    things for macOS
    ````
    ````{tabbed} Windows
    things for windows
    ````

Some of the tab contents are code blocks, which would benefit from having more horizontal space. I’ve tried setting :class: full-width and :container: +full-width but couldn’t seem to enable the tabs to use up the full width of the page, like so:

    ````{tabbed} Ubuntu
    :class: full-width
    things for Ubuntu
    ````
    ````{tabbed} macOS
    :class: full-width
    things for macOS
    ````
    ````{tabbed} Windows
    :class: full-width
    things for windows
    ````

When I build the book, I see WARNING: Directive 'tabbed': Unknown option: class. Am I missing something? Is it not yet possible to set the tabbed section size to the full width of the page?

Link to your repository or website

No response

Steps to reproduce

1. Create a tabbed section like so:

    ````{tabbed} Ubuntu
    things for Ubuntu
    ````
    ````{tabbed} macOS
    things for macOS
    ````
    ````{tabbed} Windows
    things for windows
    ````

1. Attempt to set any/all tab widths to full-width and notice the warnings when building the book.

The version of Python you’re using

3.7.10

Your operating system

macOS

Versions of your packages

Jupyter Book: 0.10.2 MyST-NB: 0.12.3 Sphinx Book Theme: 0.1.0 MyST-Parser: 0.13.7 Jupyter-Cache: 0.4.3 NbClient: 0.5.3

Additional context

Please let me know if there’s any other context I can provide! No worries if this simply isn’t possible yet. Thank you again, this is a fantastic package.

[chrisjsewell]

Ah yeh not at the moment I’m afraid. I’m actually just finishing off https://sphinx-design.readthedocs.io/en/sbt-theme/tabs.html, which is intended to eventually replace sphinx-panels extension here in jupyter-book, and there I just checked and you can indeed add :class: full-width to the tab-set to achieve this.

(see https://github.com/executablebooks/sphinx-design#comparison-to-sphinx-panels for how it currently differs)

[dataframing]

Awesome — thanks Chris!