/*
@media screen and (max-width: 639px) {
@media screen and (min-width: 640px) and (max-width: 979px) {
@media screen and (min-width: 980px) {
*/

@media screen and (max-width: 639px) {
    .col1x7_1x5_1x3 {
        grid-column: 1/3;
    }
    .col2x6_2x4_1x3 {
        grid-column: 1/3;
    }
    .col1x2 {
        grid-column: 1/2;
    }
}

@media screen and (min-width: 640px) and (max-width: 979px) {
    .col1x7_1x5_1x3 {
        grid-column: 1/5;
    }
    .col2x6_2x4_1x3 {
        grid-column: 1/5;
    }
    .col1x2 {
        grid-column: 1/4;
    }
}

@media screen and (min-width: 980px) {
    .col1x7_1x5_1x3 {
        grid-column: 1/7;
    }
    .col2x6_2x4_1x3 {
        grid-column: 2/6;
    }
    .col1x2 {
        grid-column: 1/2;
    }
}