body {
    margin: 0 auto;
    padding: 10px;
    max-width: 700px;
    font-family: sans-serif;
    background-color: #fffcf7;
    color: #212427;
    font-size: clamp(10px,5vw,1em); /*1em=16px, 16/0.05 = 320px*/
}

h1,h2,h3,h4,h5,math {
    font-family: serif;
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #000000;
        color: #d6d3c9;
    }
}

.right {
    float: right;
}