body {
    max-width: 650px;
    margin: 40px auto;
    padding: 0 10px;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: #3a3a3a;
    background-color: #ffffff;
    font-size: clamp(1rem, 2rem, 3rem);
    line-height:1.2
}