/* About Us */
.about-us{
	display: flex;
    flex-wrap: wrap;
    color: #fff;
	justify-content: space-between;
}

.aboutus-box{
	width: 33%;
	position: relative;
	overflow: hidden;
}

.aboutus-back{
	width: 100%;
	height: 100%;
	position: absolute;
    padding: 40px 0;
	background-size: cover;
	/*background-repeat: no-repeat;*/
	transition: all .4s ease-out;
	transform: matrix3d(
		1, 0, 0, 0,
		0, 1, 0, 0,
		0, 0, 1, 0,
		0, 0, 0, 1
	);
	will-change: transform;
}

.aboutus-box:hover .aboutus-back{
	transform: matrix3d(
		1, 0, 0, 0,
		0, 1, 0, 0,
		0, 0, 1, 0,
		0, 0, 0, 0.9
	);
	-webkit-filter: grayscale(70%) brightness(60%);
    -moz-filter: grayscale(70%) brightness(60%);
    -ms-filter: grayscale(70%) brightness(60%);
	filter: grayscale(70%) brightness(60%);
}

.aboutus-1{background-image: url('http://ingjapan.chiba-portal.info/wp-content/uploads/2019/01/service_gray.png');}
.aboutus-2{background-image: url('http://ingjapan.chiba-portal.info/wp-content/uploads/2019/01/surport_gray-1.png');}
.aboutus-3{background-image: url('http://ingjapan.chiba-portal.info/wp-content/uploads/2019/01/hinmoku_gray.png');}
.aboutus-4{background-image: url('http://ingjapan.chiba-portal.info/wp-content/uploads/2019/01/autoparts_gray-1.png');}

.aboutus-h{
	position: relative;
	padding: 30px 60px 10px;
	transition: all 0.5s ease-out;
	font-size: 20px;
	opacity: 1;
}

.aboutus-p{
	position: relative;
	padding: 20px 60px 30px;
	transition: all 0.5s ease-out;
	font-size: 17px;
}

.fadein {
    opacity : 0;
    transform : translate(0, 100px);
    transition : all 300ms;
}
.fadein.scrollin {
    opacity : 1;
    transform : translate(0, 0);
}