body {
   font-family: Arial, sans-serif;
   background-color: aliceblue;
}

main {
    background-color: rgb(255, 255, 255);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

img {
    padding: 5px;
    margin-left: auto;
    margin-right: auto;
}