@charset "UTF-8";
div.container{
    display: grid;
    grid-template-rows: repeat(3, 100px);
    grid-template-columns: repeat(4, 1fr);
}
div.caixa1{
    background-color: aqua;
    grid-row-start: 1;
    grid-row-end: 2;
    grid-column-start: 1;
    grid-column-end: 5;
}
div.caixa2{
    background-color: chartreuse;
    grid-row-start: 2;
    grid-row-end: 4;
    grid-column-start: 1;
    grid-column-end: 3;
}
div.caixa3{
    grid-row-start: 2;
    background-color: blueviolet;
    grid-row-end: 4;
    grid-column-start: 3;
    grid-column-end: 5;
}