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

If you take a look at the MDN CSS Reference you can see for yourself that there is no selector for single letters inside a field.

The best you can do is use :first-letter

But As you can see it does not work on