main{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
   
}

#green {
    grid-column: 1/4;
    grid-row: 1/2;
}

#yellow{
    grid-column: 1/2;
    grid-row: 2/4;
}


ul {
    display: grid;
   grid-template-columns: repeat(2, 1fr);
}


#orange {
    grid-column: 1/3;
    grid-row: 4/7;

}
#blue {
    grid-column: 3/4;
    grid-row: 2/7;
}