how do you debug tailwind in dev tools?

im new to tailwind, and when we'd use CSS in our project I could edit, enable/disable CSS rules in dev-tools, immediately see their effect and then decide how to code in the ide.
but with tailwind if an element has a .flex-1, and I disable it in the inspector, all of the elements with that class are affected, even though I've done so just in the element...
so how do you handle this?