* {
	margin: 0;
	padding: 0;
}
#wrapper {
	max-width: 1200px;
	margin: 0 auto;
}
img {
	display: block;
	max-width: 99%;
	height: 250px;
	width: 400px;
	margin-bottom: -4px;
	

}
.one-third {
	width: 29%;
	float: left;
	margin: 2%;

}
img:hover {
	opacity: .8;
}
@media screen and (max-width: 768px) {
	.one-third {
		width: 41%;
		margin: 2%;
	
	}
}
@media screen and (max-width: 480px) {
	.one-third {
		width:98%;
		margin: 2%;
	
	
	}
	

}