Twenty Twenty Three theme separator block having issue with styling option.

[nidhidhandhukiya]

Steps to reproduce the issue:-

1. Activate Twenty Twenty three theme.
2. Choose Separator block.
3. For styling choose default, wide line and dot one by one.

You can able to see that default and wide line is not making any difference.

I have attached video for better understanding.
Video URL :- ​https://share.cleanshot.com/tLYv2BLNyq6k045cpKXK

[nidhidhandhukiya]

For resolving this issue.

We need to change the user side class name which is is-style-wide to is-style-default when style option default has chosen.

After that if we add this css the issue is resolved.

wp-block-separator.is-style-default {
    width: 100px
}

[sabernhardt]

Thanks! We're already tracking this issue on #57667, if you would like to join the discussion there.