Dev Tools Stack Overflow
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###Dev Tools DOM Mining

Go to this [Stack Overflow question](http://stackoverflow.com/questions/9953482/how-to-make-a-pure-css-based-dropdown-menu)

Answer the following questions:

1. What is the class and id of each button on the nav bar?

2. What is the class of the div that holds the question title?

3. What is the class of the first div inside the question div, that adds a bottom margin of 8em? How often does this div appear on the page?

4. What is the class of the sidebar?

5. Why might some of the ids for questions and answers have long seemingly random numbers inside?

###Bonus!

Follow the question and answer flow in the link, and build your own CSS drop down menu!!
