.justificado {
    text-align: justify;
}

header {
    width: 100%;
    height: 750px;
    background: #000;
    /* fallback for old browsers */
    background: -webkit-linear-gradient(to right, hsla(0, 0%, 0%, 0.247), hsla(0, 0%, 0%, 0.247)), url(./IMG20220501132319-scaled.jpg);
    /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to right, hsla(0, 0%, 0%, 0.247), hsla(0, 0%, 0%, 0.247)), url(./IMG20220501132319-scaled.jpg);
    /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    background-size: cover;
    background-attachment: scroll;
    background-position-y: calc(65%);
}

@media only screen and (max-width: 1024px) {

    /* For mobile phones: */
    header {
        width: 100%;
        height: 450px;
        background-size:cover;
        background-position: center;
    }
}