body {
  background: #F2F1F0;
  font-family: verdana,sans-serif;
}

.navheader, .book, .preface, .chapter, .appendix, .bibliography, .navfooter, .basetemplate {
  width: 50em;
  margin-left: auto;
  margin-right: auto;
}

a.commenttoggle:hover, a.commenttoggle:active {
  opacity: 0.7;
}

.book, .preface, .chapter, .appendix, .bibliography, .basetemplate {
  background: white;
  padding: 2em;
}

h1 {
  margin-top: 1.5em;
}

span.beta {
  font-size: 80%;
  font-style: italic;
  opacity: 0.4;
}

h2, h3 {
  margin-top: 2em;
}

h1, h2, h3 {
  font-family: georgia,serif;
  font-weight: normal;
  margin-bottom: 0.5em;
}

h1.booktitle {
  margin-bottom: 0px;
}

h2.booktitle {
  text-align: center;
}

h2.booktitle > a {
  color: black;
}

.authors {
  font-size: 80%;
  opacity: 0.55;
  padding-left: 0.5em;
}

div.note th, div.tip th, div.warning th {
  font-family: georgia,serif;
  font-weight: normal;
  font-size: 110%;
}

div.navheader th, div.navfooter td {
  font-family: georgia,serif;
}

div.navheader th {
  opacity: 0;
  font-size: 0;
}

pre.screen {
  background-image: url(/support/icons/shell.png);
}

pre.programlisting {
  background-image: url(/support/icons/source.png);
}

pre.programlisting, pre.screen, p.remark {
  border-style: solid;
  border-width: 1px;
  font-size: medium;
  padding: 1em;
  background-repeat: no-repeat;
  background-position: 10px 10px;
  padding-left: 70px;
}

strong.command, code, pre, span.type {
  font-family: monospace;
  font-weight: normal;
}

strong.userinput > code {
  font-weight: bolder;
  color: #303030;
}

div.toc > p {
  opacity: 0.35;
  font-family: georgia,serif;
  cursor: pointer;
}

div.toc b {
  font-weight: normal;
  font-size: large;
}

ul.booktoc {
  padding-left: 0px;
  list-style-type: none;
}

.booktoc > li {
  padding: 0.5em;
}

.chapinfo {
  float: right;
  color: #a0a0a0;
}

.unpublished {
  color: #a0a0a0;
}

.chapinfo img {
  vertical-align: -35%;
  border: 0px;
}

.zebra_b {
  background: #f4f4f4;
}

.book .titlepage {
  display: none;
}

.chapter div.toc > dl {
  display: none;
}

pre.programlisting, pre.screen, p.remark {
  overflow: hidden;
}

p.remark {
  background-image: url(/support/icons/remark.png);
}

div.warning, p.remark {
  background-color: #FFEFE8;
  border-color: #e0a8a0;
}

span.remark {
  font-style: normal;
  color: #707070;
}

.screen {
  background: #e7ffc7 none repeat scroll 0% 50%;
  border-color: #94DA3A;
}

.programlisting {
  background: #F0F4FF none repeat scroll 0% 50%;
  border-color: #B4BAEA;
}

.prompt {
  color: #448844;
}

div.note, div.tip {
  background: #ffffc9;
  border-color: #B4BAEA;
}

div.note, div.warning, div.tip {
  border-style: solid;
  border-width: 1px;
  padding: 1em;
}

.note .title {
  font-size: 90%;
}

.comment {
  font-size: 80%;
}

div.comment, div.new_comment {
  padding: 0.5em;
  margin: 0.5em;
  margin-left: 2em;
  border-style: solid;
  border-width: 1px;
  border-color: #aaaaff;
}

div.comment {
  background: #eeeeff;
}

div.new_comment {
  background: #d0d0ff;
}

.commenttoggle {
  opacity: 0.35;
}

.comment_help {
  font-size: 80%;
}

.comment_header {
  opacity: 0.75;
}

.comment_id {
  float: right;
  opacity: 0.3;
  font-size: 60%;
}

.comment_name {
  font-weight: bolder;
}

.comment_reviewed {
  color: darkgreen;
  margin-left: 1em;
  font-style: italic;
}

.comment_date {
  opacity: 0.75;
}

.comment_thanks {
  color: darkblue;
  margin-left: 1em;
  font-style: italic;
  font-weight: bolder;
}

.comment_error {
  padding-left: 1em;
  font-weight: bolder;
  font-size: 80%;
  color: darkred;
}

.hgbookfooter {
  width: 60em;
  margin-left: auto;
  margin-right: auto;
  margin-top: 2em;
  padding: 2em;
  margin-bottom: 2em;
  font-size: 80%;
  color: #727272;
  border-top: 1px solid grey;
}

.hgbookfooter a {
  color: #5555ff;
}

.hgbookfooter a:visited {
  opacity: 0.7;
}

.hgbookfooter img {
  vertical-align: -45%;
}

table.equation a.commenttoggle {
  text-align: right;
  display: block;
}

div.comment, div.new_comment, form.comment {
  text-align: left;
}