tailwind css need to be built every time

/** @type {import('tailwindcss').Config} */
module.exports = {
  content: ["./index.html"],
  theme: {
    extend: {},
  },
  plugins: [],
}
   

hello all i am having a weird issue.Until now i run all my tailwind CSS via play cdn now wanted to run locally using cli. Every time i edit the code and run changes are not taking place.but when i run cli build process again via terminal changes take place only one time then again if i make any change to code same issue is facing. i am using vs code on Zorin OS