body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    position: relative;
}
body {
    background-image: url(../img/bloom_bg.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
}
.coming-soon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    display: inline-block;
    text-align: center;
    width: calc(100% - 20px);
    padding: 10px;
}
.coming-soon > img {
    display: inline-block;
    max-width: 100%;
    height: auto;
}