#div-body-main {
    color: white;
    text-align: center;
    position: absolute;
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    overflow: hidden;
    background-image: url("../img/index/work-731198_1920.jpg");
    background-size: cover;
    padding: 2%;
}

#div-body-main > #div-body {
    display: table;
    width: 100%;
    height: 100%
}

#div-body-main > #div-body > #div-body-greeting {
    display: table-cell;
    vertical-align: middle;
}