html, body {
    padding: 0;
    margin: 0;
    width: 100%;
    height: 100%;
    background-color: #7fb6d5;
}
.logo {
    position: absolute;
    width: 594px;
    height: 730px;
    left: 50%;
    margin-left: -297px;
    top: 50%;
    margin-top: -365px;
}