* {
    font-family: sans-serif;
}
html, body {
    height: 100%;
    overflow: hidden;
}

header {
    text-align: center;
}
header img {
    display: inline-block;
    height: 110px;
    margin-top: 4em;
    margin-bottom: 4em;
    max-width: 100%;
}
.content {
    text-align: center;
    width: 1000px;
    max-width: 100%;
    margin: 0 auto;
    box-sizing: border-box;
    height: 100%;
    position: relative;
}
.block {
    background-color: #F5F5F5;
    font-size: 2em;
    padding: 1em;
    padding-bottom: 3em;
}
.overlay {
    position: absolute;
        top: 7em;
    right: 0;
    bottom: 0;
    left: 0;
    background-image: url('/assets/img/construction.png');
    background-repeat: no-repeat;
}

body center {
    display: none;
}

/*@media screen and (max-width:920px) {
*/    body center {
        display: block;
    }
    header, .content {
        display: none;
    }
/*}*/