Build Tailwind css

WS2021.3.3
Windows10

I am trying to use Tailwind.

I have the autocompletion working fine.

I can manually build the tailwind css.

I can even run a package.json script with a watcher to force it to rebuild every time I alter an html file. 

But I can't figure out how to do that automatically.

Its a bit of a pain to have to remember to open a terminal window to run the package script each time.

Is there not some automatic way to do this in WS?

Thanks
Rob