@media (min-width: 1921px){
    html{
        background: #f1f1f1;
    }
    body{
        max-width: 1920px;
        float: none;
        margin: 0 auto;
        background: #fff;
    }
    .full_body{
        display: block;
        overflow: hidden;
        background: #fff;
        width: 100%;
    }
}