.bg_f{
    background-position: center center;
    background-repeat: no-repeat;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background-attachment: fixed;
}

.bg{
    background-position: center center;
    background-repeat: no-repeat;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

@media only screen and (max-width: 1400px) {
}

@media only screen and (max-width: 1200px) {
}

@media only screen and (max-width: 1100px) {
}

/*IPAD HORIZONTAL*/
@media only screen and (max-width: 1024px) {
    .bg_f{
        background-attachment: scroll;
    }
}

/*IPAD VERTICAL*/
@media only screen and (max-width: 768px) {
}

/* PHONES HORIZONTAL */
@media only screen and (max-width: 737px) {
}

/* PHONES HORIZONTAL */
@media only screen and (max-width: 414px) {
    .tab{
        background: red;
    }
}