body {

	margin: 0; 
	padding: 0;
	position: absolute; 
	top: 0; 
	left: 0; 
	right: 0; 
	bottom: 0;
	
}

.header {
	
	width: 100%;
	height: 74px;

}

.header_left {

	position: absolute;
	width: 50%;
	height: 74px;
	background-image: url('images/top_center.png');
	text-align: left;
	float: left;

}

.header_right {

	position: absolute;
	right: 0px;
	width: 50%;
	height: 74px;
	background-image: url('images/top_center.png');
	text-align: right;
	float: right;

}

.content {
	
	width: 100%;
	position: relative;
	text-align: center;
	top: 40%;
	
}

.footer {

    position: absolute;
    bottom: 0px;
    left: 0px;
    width: 100%;

}

.footer_left {

	position: absolute;
	width: 50%;
	bottom: 0px;
	height: 74px;
	background-image: url('images/bottom_center.png');
	text-align: left;
	float: left;

}

.footer_right {

	position: absolute;
	right: 0px;
	bottom: 0px;
	width: 50%;
	height: 74px;
	background-image: url('images/bottom_center.png');
	text-align: right;
	float: right;

}

.img_all {

	border: 0px;

}