body{
    margin: 0;
    padding: 0;
}

header, footer{
    width: 100%;
    background-color: mediumblue;
}

header{
    height: 20vh;
}

footer{
    height: 5vh;
}

main{
    width: 100%;
    height: 75vh;
    background-color: dodgerblue;
    display: grid;
}

.contPrincipal{
    display: grid;
    grid-template-columns: 1fr 2fr;
}

.contSecundario{
    display: flex;
    gap: 5%;
    justify-content: center;
}

iframe{
    width: 20%;
    max-width: 20%;
}