div {
    max-width: 80rem;
    margin: auto;
    display: block;
}

header {
    background: #cf3556;
    height: 12rem;
}

main {
    display: block;
    color: azure
}

section {
    background: #a959e3;
    height: 60rem;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: center;
    align-content: space-around;
    padding: 1rem;
}

.grande {
    background: #e5e55b;
    height: 52%;
    width: 98%;
}

.chico {
    background: #e5e55b;
    height: 45%;
    width: 31%
}

aside {
    background: orange;
    height: 12rem;
}

footer {
    background: red;
    height: 20rem;
}