/* CSS Document */

#Expo {
	position: relative;
	margin: 0 0 10rem;
	background-color: #f6e9d4;
	padding: 4rem 0;
}
#Expo::after {
	content: "";
	display: block;
	width: 100%;
	height: calc(100vw / 18);
	background: url("../img/top/common_bg_bottom.jpg") repeat-x bottom center / calc(100vw*0.3);
	position: absolute;
	bottom: calc(100vw / -18);
	left: 0;
	z-index: -1;
}

/*@media screen and (max-width: 1100px){
	#Expo::before,
	#Expo::after { background-size: cover;}
}*/

@media screen and (max-width: 720px){
	#Expo { 
		padding: 1rem 0;
	}
	#Expo::before,
	#Expo::after { height: 7rem; background-size: contain;}
	#Expo::before { top: -7rem;}
	#Expo::after { bottom: -7rem;}
}


#History {
	position: relative;
	margin: 10rem 0;
	background-color: #f6e9d4;
	padding: 1rem 0;
}
#History::before {
	content: "";
	display: block;
	width: 100%;
	height: calc(100vw / 18);
	background: url("../img/top/common_bg_top.jpg") repeat-x top center / calc(100vw*0.3);
	position: absolute;
	top: calc(100vw / -20);
	left: 0;
	z-index: -1;
}
#History::after {
	content: "";
	display: block;
	width: 100%;
	height: calc(100vw / 18);
	background: url("../img/top/common_bg_bottom.jpg") repeat-x bottom center / calc(100vw*0.3);
	position: absolute;
	bottom: calc(100vw / -18);
	left: 0;
	z-index: -1;
}

/*@media screen and (max-width: 1100px){
	#History::before,
	#History::after { background-size: cover;}
}*/
@media screen and (max-width: 720px){
	#History { 
		margin: 7rem 0;
		padding: 1rem 0;
	}
	#History::before,
	#History::after { height: 7rem; background-size: 110% auto;}
	#History::before { top: -7rem;}
	#History::after { bottom: -7rem;}
}


.social-img {
	display: flex;
	justify-content: center;
	align-items: flex-start;
	margin-bottom: 5rem;
}
.social-img-wrap { position: relative;}
.social-img-wrap:after {
    position: absolute;
    left: 0; top: 0; right: 0; bottom: 0;
    -moz-box-shadow: inset 0px 0px 30px 30px #fff;
    -webkit-box-shadow: inset 0px 0px 30px 30px #fff;
    box-shadow: inset 0px 0px 30px 30px #fff;
    content: " ";
}

@media screen and (max-width: 720px){
	.social-img { margin-bottom: 1.6rem;}
}