Generate variable max-width for children based on loop

gistfile1.txt

$columns: (
	1: 100%,
	2: 50%,
	3: 33.33%,
	4: 25%,
	5: 20%,
	6: 16.66%,
	7: 14.28%,
	8: 12.5%,
	9: 11.11%
);
.gallery-item {
    display: inline-block;
    text-align: center;
    vertical-align: top;
    width: 100%;

    // Loops to enumerate the classes for gallery columns.
    @for $i from 2 through 9 {
        .gallery-columns-#{$i} & {
            max-width: map-get( $columns, $i );
        }
    }