What's the trick to inspect popout / dropdown

问题:

Is there a way to make a popout menu 'stick' when inspecting with Firebug.

You can do it with Chrome, but I prefer firebug.

It's hard to set padding or a margin when you can't see the element you are styling.

I did some research but couldn't figure it out.

回答1:

There's an option built in:

Inspect the element that's "hidden", then use this.

回答2:

You can show/hide them using JS console, directly using show() or binding an event(mouseover, click etc).