Partial fix Styling inconsistency with the inputs in the admin login

[refael]

It's very trivial, just a little thing that caught my eye.
I'm usually using Chrome, and today needed to test something in Firefox. The inputs in FF looked to me bigger somehow, and apparently I wasn't wrong.

In FF inputs height is: 17px
In IE11 inputs height is: 15.8px
In chrome: 15px for username, 16px for password

 

[Mike]

I'm not really fussed about the height differences between browsers. We don't generally require pixel perfect copies.

However, the height difference between in Chrome is something I see so I've applied a line-height which resolves that.