#arraymicro {
    background-image: url(../images/arraymicro_1920.jpg);
    height: 910px;
    background-position: center 50px;
}

@media screen and (max-width: 1366px) {
    #arraymicro {
        background-image: url(../images/arraymicro_1366.jpg);
        height: 690px;
        background-position: center 0px;
    }
}

@media screen and (max-width: 960px) {
    #arraymicro {
        background-image: url(../images/arraymicro_960.jpg);
        height: 605px;
        background-position: center 58px;
    }
}

@media screen and (max-width: 640px) {
    #arraymicro {
        background-image: url(../images/arraymicro_640.jpg);
        height: 488px;
        background-position: center 13px;
    }
}