Can Reactjs programmatically handle :before?

Question

I somehow have to programmatically set the width of the :before for a div.

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Answer 1

Pseudo elements cannot be styled with inline styles as explained in https://stackoverflow.com/a/14141821/368697. You will have to style the something class name in a stylesheet with the .something:before selector. This is not a limitation of React but rather a design choice for HTML + CSS.

If you need to programmatically change the width of the pseudo :before element, it is probably more appropriate as a regular DOM element rendered by React.