body {
	margin: 0px;
	text-align: center;
}

#box_t {
	width: 100%;
	overflow: hidden;

}


#box_t_00 {
	position: absolute;
	left: 50%;
	width: 1280px;
	margin-left: -640px;
	/*追加*/
	margin-top: -14px;

}


#twi_bt01 {
	height: 69px;
	width: 501px;
	position: absolute;
	top: 305px;
	left: 237px;
	z-index: 15;
	
}

#twi_bt02 {
	height: 568px;
	width: 393px;
	position: absolute;
	top: 430px;
	left: 770px;
	z-index: 15;
	
}

#twi_bt03 {
	height: 600px;
	width: 600px;
	position: absolute;
	top: 420px;
	left: 250px;
	z-index: 15;
	
}

#twi_bt04 {
	height: 568px;
	width: 393px;
	position: absolute;
	top: 1030px;
	left: 770px;
	z-index: 15;
	
}

#twi_bt05 {
	height: 600px;
	width: 600px;
	position: absolute;
	top: 1020px;
	left: 250px;
	z-index: 15;
	
}

#down_bk2 {
	height: 500px;
	width: 1280px;
	position: absolute;
	top:  18px;
	left: 0px;
	
}