body {
    background-image: url('https://gifcity.carrd.co/assets/images/gallery63/05111d83.gif?v=3fc8f5cd');
    background-attachment: fixed;
}


#main-container {
    display: grid;
    height: 1200px;
    width: 950px;
    background-color: #eb4034;
    padding: 10px;
    
}

aside {
    width: 200px;
    height:700px;
    background-color: black;
    border: 5px outset #851810;
}