body {
    margin: 0;
    background-color: rgb(219, 255, 243);
    font-family: Arial, sans-serif;
}

main {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    background-color: aliceblue;
    padding-left: 10px;
    padding-right: 10px;
    padding-bottom: 10px;
}