*{
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}
.header{
	background: #eee;
	padding: 20px;
}
.header img{
	height: 60px;
}
.contents{
	margin: 60px auto 0;
	width: 1140px;
}
.contents_item{
	display: flex;
	justify-content: space-between;
}
.contents_item + .contents_item{
	margin-top: 60px;
}
.contents_item_title{
	width: 36%;
}
.contents_item_title.title1 h2{
	position: sticky;
	top: 0;
}
.contents_item_title.title2 h2{
	position: sticky;
}
.contents_item_text{
	background: #eee;
	height: 600px;
	padding: 40px;
	width: 60%;
}
.footer{
	background: #FEF968;
	margin-top: 60px;
	padding: 40px;
}
.scroll_area{
	background: #ccc;
	margin-top: 60px;
	height: 1000px;
	padding: 40px;
}