/*  GRID OF FOUR   ============================================================================= */
.span_4_of_4 { width: 100%; }
.span_3_of_4 { width: 74.6%; }
.span_2_of_4 { width: 49.2%; }
.span_1_of_4 { width: 23.8%; }
/*  GO FULL WIDTH AT LESS THAN 480 PIXELS */
@media only screen and (max-width: 480px) {
	.span_4_of_4 { width: 100%; }
	.span_3_of_4 { width: 100%; }
	.span_2_of_4 { width: 100%; }
	.span_1_of_4 { width: 100%; }
}