#mainfra .naka{
	text-align:left;	
}
.marg{
margin:0px 10px;
line-height:200%;
}
.answer{
	margin-left: 20px;
}
strong.red{
	color: #CC0000;
}
.p_r{
	float:right;
	padding-left: 10px;
}
.p_l{
	float:left;
	padding-right: 10px;
}