Button element doesn't change cursor in Chrome

[GoogleCodeExporter]

Steps to reproduce:
1. Find a <button> element (such as the new Block User one)
2. At least in Windows Chrome, hover over it.
3. Cursor stays as error.

What is the expected output? What do you see instead?
Cursor should change to pointer.

Other pertinent information (browser version, revision number, etc):
There's a .clickable class in the global css. Either all buttons need the 
clickable class or all button elements should have their cursor property set to 
pointer. I'd prefer the latter.

Original issue reported on code.google.com by [email protected] on 21 Jan 2015 at 6:23