What browser are you using? If you just want to capture any screen in Windows you can use Ctrl/Prnt Scrn (hold it for a few seconds) and edit by “pasting” into any editing program. If you want to catch a web image though, I love and recommend using Chrome browser with Screenshot capture

Aside from copying the html code “the drop down menu”. You need to copy any style rules/css and JavaScript that might be controlling the dropdown/hover effects

As far as I know, you can’t copy/paste it. As @Blueroses said, you need to take a screen shot using “print screen”, and then paste it into a program like Paint.

Thanks.
The menu in the middle of this thread:
http://www.fluther.com/102334/how-do-you-know-which-link-will-give-you-the-open/
is so perfect it never occured to me that is typed. It is nice of @ETpro.

@jjosephs my computer knowledge is not enough to pursue your answer, but thanks.