If i understand your question right then,
Yes you can set style of individual element if its id or name is available,
e.g.
if id available then u can get control over the element like,
<input type="submit" value="Go" name="goButton">
var v_obj = document.getElementsById('goButton');
v_obj.setAttribute('style','color:red;background:none');
else if name is available then u can get control over the element like,
<input type="submit" value="Go" name="goButton">
var v_obj = document.getElementsByName('goButton');
v_obj.setAttribute('style','color:red;background:none');