section, article, aside, header, footer, nav {
  display: block; }

body {
  max-width: 60em;
  margin: auto;
  line-height: 1.5; }

header {
  display: box;
  display: -webkit-box;
  display: -moz-box;
  box-align: center;
  -webkit-box-align: center;
  -moz-box-align: center;
  margin-top: 1em;
  padding-bottom: 1em;
  border-bottom-width: 1px;
  border-bottom-style: solid;
  border-bottom-color: #888888; }
  header * {
    margin: 0; }
  header h1 {
    border-radius: 20px;
    -webkit-border-radius: 20px;
    -moz-border-radius: 20px;
    box-shadow: 3px 3px 2px #888888;
    -webkit-box-shadow: 3px 3px 2px #888888;
    -moz-box-shadow: 3px 3px 2px #888888;
    background-image: -webkit-gradient(linear, center top, center bottom, from(#f10101), to(#c40202));
    background-image: -moz-linear-gradient(top, #f10101, #c40202);
    background-color: #f10101;
    font-family: "ヒラギノ明朝 Pro W6", "ＤＦＰ極太明朝体", "ＤＦ極太明朝体", "HG平成明朝体W9", "平成明朝", "ＭＳ Ｐ明朝", serif;
    font-size: 2.8em;
    line-height: 1.1;
    border: 1px solid #a30808;
    text-shadow: #f26d6d 1px 1px 1px;
    padding: 0.3em; }
    header h1 strong {
      color: white; }
  header p {
    box-flex: 1;
    -webkit-box-flex: 1;
    -moz-box-flex: 1;
    margin-left: 1.5em; }

section {
  box-shadow: 0.3em 0.3em 0.3em gray;
  -webkit-box-shadow: 0.3em 0.3em 0.3em gray;
  -moz-box-shadow: 0.3em 0.3em 0.3em gray;
  clear: both;
  margin: 0 1em;
  padding-bottom: 0.5em; }
  section h2 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-family: "ヒラギノ明朝 Pro W6", "ＤＦＰ極太明朝体", "ＤＦ極太明朝体", "HG平成明朝体W9", "平成明朝", "ＭＳ Ｐ明朝", serif;
    padding-left: 0.4em;
    background-image: -webkit-gradient(linear, center top, center bottom, from(#f10101), to(#c40202));
    background-image: -moz-linear-gradient(top, #f10101, #c40202);
    background-color: #f10101;
    text-shadow: #d64444 1px 1px 1px;
    border-bottom-width: 1px;
    border-bottom-style: solid;
    border-bottom-color: #861010;
    border-left-width: 12px;
    border-left-style: solid;
    border-left-color: black; }
    section h2 strong {
      color: white;
      margin-right: 0.1em; }
  section p {
    margin: 0.7em auto; }
  section dl {
    margin: 1em; }
    section dl dt {
      margin-top: 0.8em;
      margin-bottom: 0.2em;
      font-weight: bold; }
    section dl dd {
      margin-left: 1em; }
  section pre {
    padding: 0.5em 1em;
    font-size: small; }
    section pre.blockcode {
      box-shadow: 0.2em 0.2em 0.3em gray;
      -webkit-box-shadow: 0.2em 0.2em 0.3em gray;
      -moz-box-shadow: 0.2em 0.2em 0.3em gray;
      border: solid thin gray;
      white-space: pre-wrap;
      margin-right: 1em; }
    section pre.shell {
      background-color: black;
      color: white;
      margin-right: 1em; }
  section .note {
    border-radius: 4px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border: solid thin silver;
    background-color: #eeeeee;
    margin-right: 1em;
    padding: 0.5em 1em; }
    section .note pre.shell {
      margin-right: 0em; }
    section .note:before {
      content: "注記:";
      display: block;
      font-weight: bold; }
    section .note *:first-child {
      margin-top: 0; }

footer {
  text-align: right;
  font-size: small;
  color: gray;
  margin-top: 3em;
  margin-bottom: 1em; }
  footer * {
    margin: 0; }
  footer li {
    display: inline-block; }
  footer a {
    color: inherit; }