.c1{grid-column: 1;}
.c2{grid-column: 2;}
.c3{grid-column: 3;}
.ca{grid-column: 1/4;}

.l1{grid-row: 1;}
.l2{grid-row: 2; margin-top: 3%;}
.l3{grid-row: 3; margin-top: 3%;}
.l4{grid-row: 4; margin-top: 3%;}
.l5{grid-row: 5; margin-top: 3%;}
.l6{grid-row: 6; margin-top: 3%;}
.l7{grid-row: 7; margin-top: 3%;}