Bug Description

I have such CSS and it works fine on the standard version of the site:

:where(.container) {
   width: min(var(--container-max-width), 100% - calc(var(--container-padding) * 2));
   margin-inline: auto;
}

However, when I display the AMP version of the page, it is broken because there is only such CSS left in the .container class:

:where(.container) {
   margin-inline: auto;
}

I don't even see in the file preview that it was removed, so it's probably some kind of bug:

Expected Behaviour

It shouldn't be removed.

Screenshots

No response

PHP Version

8.1

Plugin Version

2.3.0

AMP plugin template mode

Transitional

WordPress Version

6.0.2

Site Health

No response

Gutenberg Version

No response

OS(s) Affected

All

Browser(s) Affected

All

Device(s) Affected

All

Acceptance Criteria

No response

Implementation Brief

No response

QA Testing Instructions

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Demo

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Changelog Entry

No response