.paralasic {
	background-image:url(../img/iStock-517188688.jpg);
	
	background-attachment: fixed;
	background-size: cover;
	background-size: 100vw;
	background-position: center top;
	background-repeat: no-repeat;
	background-color: #333;
}

h1.title{padding: 250px 100px; text-align: center;}

.paralasic-demo{
	width: 100%;
	height: 300px;
	background-image: url(../img/photo-1422393462206-207b0fbd8d6b.jpg);
	background-attachment: fixed;
	background-size: cover;
	background-size: 100vw;
	background-position: center top;
	background-repeat: no-repeat;
	background-color: #333;
}