@media (max-width: 992px) {
    #styleImg {
        width: auto; 
        height: 25px; 
        cursor:pointer;
    }
    #fullScreen {
        display: none;
    }
}
@media (min-width: 992px) {
    #styleImg {
        width: auto; 
        height: 25px; 
        cursor:pointer;
    }
    #fullScreen {
        display: block;
    }
}