Styling letters of a word within an input differently, possible?

Question

Wondering if this is even possible, but if I have a input containing text, for example lets say the word \'Test\' is in the input. What I would like to be able to do is change

Answer 1

Don't think it is possible (will do some more test).

What about adding a contenteditable div which looks like a input?

Simple contenteditable exmaple: http://jsfiddle.net/PpEx7/

EDIT

Nopez not possible. :)