All Submissions:

• Have you followed the WooCommerce Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

With woocommerce/woocommerce-blocks#7234, we are adding support to the errors to the Mini Cart Block, adding the notice support. The Mini Cart block can be loaded on all the pages, so we have to move the CSS about the notice outside the .woocommerce class scope.

• This PR is a very minor change/addition and does not require testing instructions (if checked you can ignore/remove the next section).

How to test the changes in this Pull Request:

1. Install woocommerce-gutenberg-products-block.zip that contains the change of this PR.
2. If you are testing a block theme, open the FSE editor and add the Mini Cart Block in the header, otherwise, open the widget area and put the Mini Cart in the footer. Save.
3. Go to the frontend and add the product to the Cart. Be sure that on Mini Cart Block, any "notice" is visible on top.
4. On the editor side, edit the product that you added and set it as out of stock. Save.
5. On the frontend side, refresh the page. Go to the Cart page and see the notice.
6. Open the Mini Cart block and be sure that the notice is visible. Please check on a WooCommerce page (/shop) and a WordPress page (in case of a default installation, the homepage is fine).

Theme	WooCommerce Page	WordPress Page
TT3
TT2
TT1
Twenty Twenty Ninteen
Twenty Twenty Seventeen

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you created a changelog file for each project being changed, ie pnpm --filter=<project> changelog add?

FOR PR REVIEWER ONLY:

• I have reviewed that everything is sanitized/escaped appropriately for any SQL or XSS injection possibilities. I made sure Linting is not ignored or disabled.