With placeholder, and with no explicit ancestor height, and with height relying on the dimensions of the child component, why is height settling at 0?
Of note, without placeholder height comes in correct, and with placeholder and display: "table" height also comes in correct.
https://codesandbox.io/s/modest-sid-jiisp9?file=/src/App.js
Ok, I see that changing height from size.height to "100%" fixes the issue. I see the placeholder is doing this in the code. Maybe we aren't supposed to specify the height from react-sizeme into the height of the container div?