Image can’t align center inside block column

[hklcf]

block editor preview

actual

demo: ​http://232.email/myav/2019/05/16/7/

[garrett-eclipse]

Thanks for the report @hklcf I was able to reproduce this with a clean install of WP using the Twenty Nineteen theme.

Upon inspect I found the theme CSS sets a calculated width on the centered figure element surrounding the image. This causes the element to extend beyond the bounds of the column causing it's centered child image to be displaced out of the column.

Setting to 100% width when in a column block seems to resolve the issue but should be looked at in the bundled theme where this is applied.

I believe this is the SCSS which controls that width in the theme CSS;
​https://github.com/WordPress/WordPress/blob/master/wp-content/themes/twentynineteen/sass/blocks/_blocks.scss#L533-L553

Moving into the Bundled Theme component for further review.

[garrett-eclipse]

Issue illustrated w/ inspector to show the CSS and how it affects the figure element

[sabernhardt]

Duplicate of #47937.

Thanks for reporting and testing this. Twenty Nineteen had a problem that was fixed in 5.3 (r45897) by setting a max-width of 100% on the figure element.

I checked each of the other bundled themes and did not find a similar problem in any of those.