body { 
    background-image: url('../images/christmas_background.jpg');
    background-position: center center;
    background-repeat:  no-repeat;
    background-attachment: fixed;
    background-size:  cover;
    background-color: #FFF;
}

@media screen and (min-width:1088px) {

    .container {

        max-width: 800px;
        width: 800px;

    }

}