@charset "utf-8";

body {
    
.caja {
    width: 100%;
    margin: auto;
}

nav ul {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: auto;
}

.section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto;
}

article,
aside {
    border: 1px solid black;
    text-align: justify;
    margin: 0;
    padding: 10px;
}

.a {
    display: grid;
    grid-template-columns: 650px;
    grid-template-rows: auto;
}

.b {
    display: grid;
    grid-template-columns: 250px;
    grid-template-rows: auto;
}

.c {
    display: grid;
    grid-template-columns: 100px;
    grid-template-rows: auto;
}