Minimal CSS : For Quick Web Page

html {
max-width: 70ch;
padding: calc(1vmin + .5rem);
margin-inline: auto;
font-size: clamp(1em, 0.909em + 0.45vmin, 1.25em);
font-family: system-ui
}
body :not(:is(h1,h2,h3,h4,h5,h6)) {
line-height: 1.75;
}