body {
  font: 14px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  max-width: 820px;
  margin: 2rem auto;
  padding: 0 1rem;
  color: #222;
}
h1 { font-size: 1.35rem; margin: 0 0 .4rem; }
h2 { font-size: .98rem; margin: 1.7rem 0 .4rem; font-weight: 600; }
p { margin: .5rem 0; }
pre {
  margin: .2rem 0;
  padding: .55rem .75rem;
  overflow-x: auto;
  border: 1px solid #ddd;
  background: #f6f6f6;
}
pre.cmd { background: #eef3ff; border-color: #cdd9f0; color: #233; }
.note { color: #777; margin: .25rem 0 0; }
.foot { color: #999; font-size: .8rem; margin-top: 2rem; border-top: 1px solid #eee; padding-top: .5rem; }
a { color: #1a56c4; }