.colCase {
	position: relative;
  width: 100%;
  margin: 0 auto 60px;
  display: flex;
}
.colCase_reverce {
	flex-direction: row-reverse;
}
.colCase .colItem:first-child {
  flex: 0 0 35%;
	z-index:2;
}
.colCase .colItem:last-child {
	position: relative;
	margin:70px 0 0 -100px;
  flex: 1;
	background:#efefef;
	padding:30px 30px 0 130px;
	z-index:1;
	height:275px;
}
.colCase .colItem:last-child::before{
  content: "";
	position: absolute;
	top:0;
	left:50%;
	width:100vw;
	height:100%;	
	background:#efefef;
	z-index:-1;	
}


.colCase_reverce .colItem:last-child {
	margin:70px -100px 0 0;
	padding:30px 130px 0 30px;
}
.colCase_reverce .colItem:last-child::before {
  content: "";
	position: absolute;
	top:0;
	left:50%;
	transform:translateX(-100%);
	width:100vw;
	height:100%;
	background:#efefef;
	z-index:-1;
}

.colCase .colItem h3 {
  font-size: 1.25rem; 
  font-weight: 700;
  margin-bottom: 10px;
}

.colCase .colItem p {
  color: #333;
}