#sec1 {
	position: relative;

}
#sec1 .row_1 h3{
	padding: 20px 0;
}
#sec1 .row_1 .img{
	width: 65%;
	float: right;
	margin-top: -23%;
}
#sec1 .row_1 .txt{
	padding: 0 10px;
}
#sec1 .sec1_btn1{
	padding: 10px 10px 0;
}
#sec1 .w_700{
}
#sec1 .sec1_img2{
	padding-top: 10px;
}
#sec1 .row_2{
	position: relative;
}
#sec1 .row_2 h3{
}
#sec1 .row_2 .txt1{
	padding: 10px 10px 0;
}
#sec1 .sec1_btn2{
	float: none;
	padding: 0 10px;
}
#sec1 .row_3{
	position: relative;
}
#sec1 .row_3 h3{
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	padding: 20px 0 0;
}
#sec1 .row_3 .img{
	padding-top: 15%;
}
#sec1 .row_3 .txt1{
	float: none;
	padding: 0 10px;
}
#sec1 .sec1_btn3{
    text-align: right;
    padding: 10px 10px 20px;
}
#sec2{
}
#sec2 .w_370{
}
#sec2 .txt1{
	padding: 10px 10px 0;
}
#sec2 .sec2_btn{
	padding: 10px 10px 20px;
}
#sec3{
}
#sec3:before{
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: url('../img/how_to/sec3_img.png') no-repeat center top / cover;	
}
#sec3:after{
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: url('../img/how_to/.png') no-repeat center top / cover;	
}