Pasted

.grid-item {
	float: left;
	width: 29.7619047619%;
	margin-bottom: 40px;
	margin-left: 5.3571428571%;
}
 .grid-item:nth-of-type(3n+1) {
	margin-left: 0;
}
 @media only screen and (max-width: 800px) {
	.grid-item {
		width: 46.2121212121%;
		margin-left: 7.5757575758%;
	}
 	.grid-item:nth-of-type(3n+1) {
		margin-left: 7.5757575758%;
	}
 	.grid-item:nth-of-type(2n+1) {
		margin-left: 0;
	}
}
 @media only screen and (max-width: 500px) {
	.grid-item {
		width: 100%;
		margin-left: 0;
	}
 	.grid-item:nth-of-type(3n+1) {
		margin-left: 0;
	}
}