[1] app.ajax-poll/cp.include/style.inc.php
	body {}
	input, select, textarea {}
[2] (each-poll-name)/css/style.inc.php

EN
	font-family: "Verdana", "Arial", "Helvetica", "serif";
JP
	font-family:'Lucida Grande','Hiragino Kaku Gothic ProN', Meiryo, sans-serif;