Template:Communityportal/styles.css

#siteContainer { text-align: center; }
.siteItem {
	display: inline-block;
	clear: both;
	padding: 0 0.1%;
}

@media screen and ( max-width: 720px ) {
	.siteItem {
		padding: unset;
		width: 49.5%;
		margin: 2% 0;
	}
	.siteItem:nth-of-type(even) {
		float: left;
		clear: none;
	}
	.siteItem:nth-of-type(odd) {
		float: right;
	}
	#siteContainer:after {
		content: '';
		clear: both;
		display: block;
	}
}