How do I make all child s expand to the length of parent div when one child causes parent to expand?

If you need a pure css solution then it'll be very difficult to achieve. But to get this done easily you can use jQuery .

After trying EVERYTHING (or so it seems) I finally realized that the best (and probably only) way to make 3 plus columns expand to the height of the longest column is to not use DIVs but instead use a table.

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