.wrapper {
	width: 95%;
	margin: 3em auto;
}

.masonry, .masonry3 {
	margin: 1.5em 0;
	padding: 0;
	-moz-column-gap: 1.5em;
	-webkit-column-gap: 1.5em;
	column-gap: 1.5em;
}

.item {
	display: inline-block;
	background: #fff;
	padding: 1em;
	margin: 0 0 1.5em;
	width: 100%;
	box-sizing: border-box;
	-moz-box-sizing: border-box;
	-webkit-box-sizing: border-box;
	box-shadow: 2px 2px 4px 0 #ccc;
}

@media only screen and (min-width: 400px) {
	.masonry, .masonry3 {
		-moz-column-count: 1;
		-webkit-column-count: 1;
		column-count: 1;
	}
}

@media only screen and (min-width: 700px) {
	.masonry, .masonry3 {
		-moz-column-count: 2;
		-webkit-column-count: 2;
		column-count: 2;
	}
}

@media only screen and (min-width: 900px) {
	.masonry, .masonry3 {
		-moz-column-count: 3;
		-webkit-column-count: 3;
		column-count: 3;
	}
}

@media only screen and (min-width: 1100px) {
	.masonry {
		-moz-column-count: 4;
		-webkit-column-count: 4;
		column-count: 4;
	}
	.masonry3 {
		-moz-column-count: 3;
		-webkit-column-count: 3;
		column-count: 3;
	}
}

@media only screen and (min-width: 1280px) {
	.wrapper {
		width: 1260px;
	}
}