html,
body,
header, 
.view{
 	
	margin-top: 100;
}
.bk_txt{ 
	#background-color: rgba(63, 81, 181, 0.4);
	font-size:90%;
	
}
footer {
	margin-top: 100;
	background-color:  rgba(0,0,0,0.6);
	text-decoration-color: white;
	font-size:80%;
}
@media (max-width: 740px){
	.full-page-intro{
		height: 1000px;
	}
}
.navbar{
	background-color: rgba(0,0,0,0.6);
}
.top-nav-collapse{
	background-color: rgba(0,0,0,0.6;
}
@media only screen and (max-width: 768px){
	.navbar{
		background-color:rgba(0,0,0,0.6);
	}
}
.page-footer{
	background-color: rgba(0,0,0,0.6);
}
@media (max-width: 740px){
html,
body,
header,
.view{
		height: 100%;
	}
}

@media (max-width: 740px){
.main-img{
		height: 40%;
	}
}