@media only screen and (device-width: 768px) and (device-height: 1024px) and (orientation:portrait) {
/*    .header1 {
        display: none
    }*/

    .header2 {
        display: none
    }
/*
    .header3 {
        text-align:center
    }*/
}

@media only screen and (device-width: 1024px) and (device-height: 768px) and (orientation:landscape) {
/*    .header1 {
        display: none
    }
*/
    .header2 {
        display: none
    }
/*
    .header3 {
        text-align: center
    }*/
}

@media only screen and (max-width: 768px) {
 /*   .header1 {
        display: none
    }*/

    .header2 {
        display: none
    }

  /*  .header3 {
        text-align: center
    }*/
}