Bug 75587 – [CSS Regions] Can't flow into block-styled ::before and ::after elements with no other content

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: CSS

[Alan Stearns]

Created attachment 121186 [details]
reftest

The flow-into property only works on block-level elements, and ::before and ::after pseudos can be styled with display:block. Styling the pseudos as block elements is not sufficient for flow-into to work on them, though.

// this does not display any namedFlow content in the pseudo element
display:block;
-webkit-flow-into: namedFlow;

If you add a content property, then the pseudo elements will throw that content away and work as regions:

// this works
display: block;
content: 'a';
-webkit-flow-into: namedFlow;

I'm assuming there's an optimization that ignores pseudo elements if they have no content, but this path will need to check to see if flow-into is assigning content to the element.

[Mihai Balan]

This was fixed as part of a larger fix of regions & pseudo-elements in #90079.

*** This bug has been marked as a duplicate of bug 90079 ***