[SOLVED]active modifier class absent in tailwindcss

[joypoddar]

Designing with Tailwind CSS: Hover, Focus, and Active Styles
I have been using the linked tutorial by Adam Wathan to learn tailwindcss. While working on a specific part concerning usage of active modifier, i noticed that the default tailwind css file does not have any of the active classes. I also checked the latest documentation, and it contains the active modifiers. Where could I have gone wrong?

package.json

"dependencies": {
    "autoprefixer": "^10.1.0",
    "postcss": "^8.2.1",
    "postcss-cli": "^8.3.1",
    "tailwindcss": "^2.0.2"
  }