Define css if javascript is not enabled

Question

I want to define .exampleclass img {height:250px} if javascript is not enabled. Is their anyway to undo this in javascript / jquery?

Answer 1

One day we may have this

Not currently active in Chrome 83 Win10

https://developer.mozilla.org/en-US/docs/Web/CSS/@media/scripting

p {
  color: lightgray;
}

@media (scripting: none) {
  .script-none {
    color: red;
  }
}

@media (scripting: initial-only) {
  .script-initial-only {
    color: red;
  }
}

@media (scripting: enabled) {
  .script-enabled {
    color: red;
  }
}

You do not have scripting available. :-(
Your scripting is only enabled during the initial page load. Weird.
You have scripting enabled! :-)