section {
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-size: cover;
    height: 1100px;
    margin: 0 auto;
    max-width: 1440px;
    overflow: hidden;
    padding: 0;
    position: relative;
    width: 100% !important;
}
#bloque1 {
    background-image: url("img/iso.jpg");
}
#wrapper {
    box-shadow: 0 0 12px rgba(0, 0, 0, 0.8);
    margin: 0 auto;
    max-width: 1440px;
    width: 100% !important;
}