[css-align] gap properties for block layout #3068
Description
From the CSS Box Alignment Module Level 3 Editor’s Draft:
The gap property, and its row-gap and column-gap sub-properties, provide this functionality for multi-column, flex, and grid layout.
Shouldn't gap and row-gap be functional in block layout too?
e.g.
<ul style="row-gap: 2em;">
<li>
No space above this item
</li>
<li>
Space between this item and the ones above and below it
</li>
<li>
No space below this item
</li>
</ul>Of course you can get the same effect with margins, but the gap properties are considerably more elegant/cleaner.