body {
  font-family: "Courier New", Courier, monospace;
  font-size: 16px;
  line-height: 1.6;
  max-width: 65ch;
  padding: 1rem;
  background: #fff;
  color: #111;
}

a { color: #00e; }
a:visited { color: #551a8b; }

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.1rem; }

pre, code {
  background: #f0f0f0;
  font-family: inherit;
}

pre {
  padding: .5rem;
  overflow-x: auto;
  border-left: 2px solid #ccc;
}

blockquote {
  border-left: 2px solid #ccc;
  padding-left: 1rem;
  color: #555;
}

table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid #ccc; padding: .3rem .5rem; text-align: left; }

input, textarea, select, button {
  font-family: inherit;
  font-size: 1rem;
  padding: .4rem;
  border: 1px solid #ccc;
  display: block;
  margin-bottom: .5rem;
}

img { max-width: 100%; display: block; }