body, html { 
    background: url(../img/offline.jpg) no-repeat center center fixed; 
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    
    /* IE & EDGE */
    filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='.myBackground.jpg', sizingMethod='scale');
    -ms-filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='myBackground.jpg', sizingMethod='scale')";
}
* {
    margin: 0;
    padding: 0;
}
.offline-title {
    text-align: center;
    color: #fff;
    font-size: 48px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 100px;
}