.t_center{
	text-align: center;
}

.t_left{
	text-align: left;
}

.t_right{
	text-align: right;
}

.left{
	float: left;
}

.right{
	float: right;
}

#clr{
	clear: both;
	height: 0px;
	overflow: hidden;
}

.hidden{
	display: none;
}

.warp90{
	margin: 0px 90px;
}