body
{
    background-color: #cfd8dc;
     
}

    body .sb-site-container
    {
        max-width: 1200px;
        margin: 0 auto;
        box-shadow: 0 6px 10px 0 rgba(0,0,0,.14),0 1px 18px 0 rgba(0,0,0,.12),0 3px 5px -1px rgba(0,0,0,.2);
    }