#img01{
    background-image: url('../img/gallery/communication0.jpg');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}

#img02{
    background-image: url('../img/gallery/communication.jpg');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}

#img03{
    background-image: url('../img/gallery/communication2.jpg');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}