WordPress 6.0 & container spacing.

Hi all,

I have recently shifted to the new tweeny tweeny-two theme and have been learning how to modify the theme. However, I can not figure out how to target and change the default container spacing in the theme.json.

theme.json:
This is used for many front-end-spacing logics.
…
“spacing”: {
“blockGap”: “1.5rem”
},
…

This is the inspector CSS:
There are many instances of this class. It is getting dynamically generated each time a block is added.
The variable is pulled from above.

.wp-container-38 > * + * {
margin-block-start: var( –wp–style–block-gap );
}

The child CSS hack that I have currently:

div[class^=”wp-container”], div[class*=”wp-container”], div[class*=”wp-block-spacer”] {
margin-block-start: 0;
}

How can I modify child theme.json to achieve the above CSS hack? This is required only for the front-end “wp-block-group” classes.

This did not work for me…

{
    "version": 1,
    "styles": {
        "blocks": {
            "core/group": {
                "spacing": {
                    "marginBlockStart": "0"
                }
            }
        }
    }
}

Any insight on how the blockGap works apricated. How to modify the blockGap value per block pattern.

Thanks.
R