html { background: url(../img/pozadi/pozadi12.jpg) no-repeat fixed center center;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover; 

background-attachment: fixed;
}
@media screen and (max-width: 649px) {	
	html, body{
		background: url(../img/pozadi/pozadi12m.jpg);
			background-repeat: no-repeat;
   -webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover; 
	/*background-size: 100vmax 100vmax;*/
	background-attachment: fixed;
	background-position: center center;
	box-sizing: border-box;
	overflow-x: hidden;
	background-color: black;
	}
}
@media screen and (min-width: 649px) {	
	html, body{
		background: url(../img/pozadi/pozadi12.jpg);
			background-repeat: no-repeat;
   -webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover; 
	/*background-size: 100vmax 100vmax;*/
	background-attachment: fixed;
	background-position: center center;
	box-sizing: border-box;
	overflow-x: hidden;
	background-color: black;
	}
}