.grid {width: calc(100% + 16px); padding-top: 16px; margin: 0 auto;}
.grid-sizer, .grid-item {width: calc(16.66% - 16px);}
.gutter-sizer {width: 16px;}
.grid-item {margin-bottom: 16px;}

@media screen and (max-width: 2000px) {
	.grid-item, .grid-sizer {width: calc(20% - 16px);}
}
@media screen and (max-width: 1400px) {
	.grid-item, .grid-sizer {width: calc(25% - 16px);}
}
@media screen and (max-width: 1100px) {
	.grid-item, .grid-sizer {width: calc(33.33% - 16px);}
}
@media screen and (max-width: 680px) {
	.grid-item, .grid-sizer {width: calc(50% - 16px);}
}