2 Line Button Value

I want to make a button like this. As you can see, there is 2 lines and lines' font size is different . Is this possible with using CSS + HTML (and maybe JS) ? I don't want to use

Solution 1:

<button>
<span style="font-size:16px;">1st Line</span><br />
<span style="font-size:12px;">2nd Line</span>
</button>

Should work

Solution 2:

Somethink like this?

http://jsfiddle.net/36fcw/2/

Solution 3:

Put 
 where you want to break the line

Solution 4:

form elements are always a pain to design out... best walk through is to put form elements in table.. hope this helps you. Your form within table and some css..