Q:

Why am I not able to type input into input boxes?

To replicate:

Be using Chrome version 34 or the latest version of Firefox.
Open up the site and click Sign Up or Login
In Chrome, click in a password input.  In Firefox, click in any input.

The results should be that the input appears to get focus, but does not allow the user to enter characters.
Solutions I have tried:

Disabling JavaScript
Messing with the z-index settings (making sure that the parent and child elements had a position other than static.

Things to note:

I did not have this problem in Chrome version 33.
This happens in Windows 7, Windows 8.1, and on Mac.
In Chrome only the inputs of type password do not work.  Only text does.

I really feel like it's an issue with the z-index and the .list elements underneath the .drop-box, but am also puzzled why (in Chrome) an input with type text would work but password wouldn't.  I have been trying to see what might have changed between Chrome version 33 and 34 so I can maybe pinpoint the issue, but have had no luck as of yet.
Any ideas?

A:

You have box-sizing: border-box and padding-top + padding-bottom = height. This means the content height is zero, so you cannot see anything you type (but attempting to type correctly updates the validation).
You should remove the box-sizing on those elements, or remove the padding.

