Open up your terminal and run these commands.
cd '<Project Folder>'
npm install
npm run css
And you are good to go.
If at any point you come across some errors, probably while trying to edit something in the tailwind.config.js file, you should head over to your terminal and type npm run css
again or type npx tailwindcss -i ./src/input.css -o ./public/assets/css/output.css --minify --watch
depending on your choice.