Why display: contents Is Not CSS Grid Layout subgrid by Rachel Andrew 

Rachel Andrew:

You won’t get far through a conversation about subgrid in CSS Grid Layout without someone suggesting that display: contents solves most of the problems anyway, so do we really need subgrid? This really isn’t the case, display: contents does indeed solve a class of problems, but these are different problems to those that subgrid would help us with.

Rachel Andrew explains in detail how display: subgrid is different to display: contents. Interestingly, I had a similar issue just the other day. In my situation however, display: contents would’ve worked perfectly. If you’re trying to keep up to date with all the new layout stuff, this article is a must-read.

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