.jumbotron {
	max-width: 1250px;
	margin: auto;
	background-color: transparent;
}
#intro {
	background: url('bg.jpg');
	background-repeat: no-repeat;
	background-attachment: fixed;
	background-position: center;
	background-size: cover;
	height:750px;
}
.cloud {
	background-color: rgba(255,255,255,0.7);
	padding: 20px;
}
#problem,#why,#fix,#blockchain,#what,#useCases,#team,#contact {
	padding: 70px 0px;
}
#problem,#fix,#what,#team {
	background-color: #008CBA;
	color:#fff;
}
.white {
	color: #fff;
}
.logo {
	width:80%;
	max-width:400px;
}
@media screen and (max-width: 575px) {
	.logo {
		height:80px;
	}
}
@media screen and (min-width: 576px) and (max-width: 767px) {
	.logo {
		height:100px;
	}
}
@media screen and (min-width: 768px) {
	.logo {
		height:120px;
	}
}
@supports (-webkit-overflow-scrolling: touch) {
	#intro {
		background-size: cover;
		background-attachment: scroll;
	}
}