*
{
    background-origin: padding-box;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body
{
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #333;
}

main
{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    width: 100vw;
}