tachyons-css does not reflected on the output

Question

Need Help, 'tachyons' is not working. I installed it with npm install tachyons then imported it in the 'index.js' file using import 'tachyons' but it's not working. It does not show any changes in the output although I put ’f1 tc’ in the className. I’m sure npm is started and it is added in the json package file, and I have tried this few times.enter image description here

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