body {max-width:650px;
      margin:40px auto;
      padding:0 10px;
      font:18px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
      color:#444}

h1,h2,h3 {line-height:1.2}

img {max-width:100%;}

a {white-space: nowrap;}

/* @media (prefers-color-scheme: dark)
 {body {color:#c9d1d9;background:#0d1117}
 a:link{color:#58a6ff}
 a:visited{color:#8e96f0}
} */