.header_paralax
{
	background: url("img/header.jpg");
	height: 30vh;
	background-repeat: no-repeat;
	background-size: cover;
  display: flex;
  flex-direction: column;
  justify-content: center;
}	
@media (min-height: 1400px) 
	{ 
		.header_paralax
			{
				background: url("img/morze_2.jpg");
				height: 30vh;
				background-repeat: no-repeat;
				background-size: cover;
			  display: flex;
			  flex-direction: column;
			  justify-content: center;
			}
	}
@media (max-width: 728px) 
	{ 
		.header_paralax
			{
				background: url("img/morze_2.jpg");
				height: 30vh;
				background-repeat: no-repeat;
				background-size: cover;
			  display: flex;
			  flex-direction: column;
			  justify-content: center;
			}
	}
@media (max-width: 728px) 
	{ 
		.historii_naturalnej,
.historii_naturalnej2,
.roosevelt_island,	
.rockefellercenter,
.rockefellercenter2,
.timesquare,
.timesquare2,
.empirestatebuilding,
.empirestatebuilding2,
.centralpark,
.centralpark2,
.centralpark3,
.statenisland,
.manhattanlookout,
.oculus,
.wtc,
.most_brooklinski,
.most_brooklinski2,
.most_brooklinski3,
.dumbo,
.brooklyn_heights,	
.brooklyn_heights2,	
.rowery {
  display: none;
}
	}	
	
	
	
.historii_naturalnej,
.historii_naturalnej2,
.roosevelt_island,	
.rockefellercenter,
.rockefellercenter2,
.timesquare,
.timesquare2,
.empirestatebuilding,
.empirestatebuilding2,
.centralpark,
.centralpark2,
.centralpark3,
.statenisland,
.manhattanlookout,
.oculus,
.wtc,
.most_brooklinski,
.most_brooklinski2,
.most_brooklinski3,
.dumbo,
.brooklyn_heights,	
.brooklyn_heights2,	
.rowery {
  position: relative;
  opacity: 1;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed; /* fixed = parallax, scroll = normal */
  border: 5px solid black;
  overflow: visible;
  z-index: 99999999999999999999999999999999999999;
}
	
.rowery {
  background-image: url("img/parallax/rowery.jpg");
  min-height: 600px;
  z-index: 99999999999999999999999999999999999999;
  
}
.brooklyn_heights{
  background-image: url("img/parallax/brooklyn_heights.jpg");
  min-height: 600px;
}
.brooklyn_heights2{
  background-image: url("img/parallax/brooklyn_heights2.jpg");
  min-height: 600px;
}
.dumbo{
  background-image: url("img/parallax/dumbo.jpg");
  min-height: 600px;
}
.most_brooklinski{
  background-image: url("img/parallax/most_brooklinski.jpg");
  min-height: 600px;
}
.most_brooklinski2{
  background-image: url("img/parallax/most_brooklinski2.jpg");
  min-height: 600px;
}
.most_brooklinski3{
  background-image: url("img/parallax/most_brooklinski3.jpg");
  min-height: 600px;
}
.wtc{
  background-image: url("img/parallax/wtc.jpg");
  min-height: 600px;
}
.oculus{
  background-image: url("img/parallax/oculus.jpg");
  min-height: 600px;
}
.manhattanlookout{
  background-image: url("img/parallax/manhattanlookout.jpg");
  min-height: 600px;
}
.statenisland{
  background-image: url("img/parallax/statenisland.jpg");
  min-height: 600px;
}
.centralpark{
  background-image: url("img/parallax/centralpark.jpg");
  min-height: 600px;
}
.centralpark2{
  background-image: url("img/parallax/centralpark2.jpg");
  min-height: 600px;
}
.centralpark3{
  background-image: url("img/parallax/centralpark3.jpg");
  min-height: 600px;
}
.empirestatebuilding{
  background-image: url("img/parallax/empirestatebuilding.jpg");
  min-height: 600px;
  
}.empirestatebuilding2{
  background-image: url("img/parallax/empirestatebuilding2.jpg");
  min-height: 600px;
}

.timesquare{
  background-image: url("img/parallax/timesquare.jpg");
  min-height: 600px;
}

.timesquare2{
  background-image: url("img/parallax/timesquare2.jpg");
  min-height: 600px;
}

.rockefellercenter{
  background-image: url("img/parallax/rockefellercenter.jpg");
  min-height: 600px;
}

.rockefellercenter2{
  background-image: url("img/parallax/rockefellercenter2.jpg");
  min-height: 600px;
}

.roosevelt_island{
  background-image: url("img/parallax/roosevelt_island.jpg");
  min-height: 600px;
}

.historii_naturalnej{
  background-image: url("img/parallax/historii_naturalnej.jpg");
  min-height: 600px;
}

.historii_naturalnej2{
  background-image: url("img/parallax/historii_naturalnej2.jpg");
  min-height: 600px;
}