body {
    widows: 2;
    orphans: 2;
    -webkit-hyphens: none !important;
    adobe-hyphenate: none;
    -moz-hyphens: none;
    hyphens: none;
  
  }
  /* Title page */
   #cover-image {width: 100%; }
  
  /* Use the media query because Kindles don't support max-width */
  @media not amzn-mobi, not amzn-kf8 {
    #cover-image img { max-width: 100%; }
  }
  
  
   div#text-cover h2 {
     page-break-before: avoid;
   }
  
  /* ToC page */
  h2#toc {
    margin-top: 1em;
    font-variant: normal;
    font-family: sans-serif;
  }
  
  /* The "Guide" page */
  nav#guide {
    display: none;
  }
  
  /* Book ToC */
  ol.toc, ol.toc ol {
    padding: 0;
    margin: 0;
  }
  
  /* Chapters for ToC without Parts */
  .toc.no-parts > li {
    margin-bottom: 0.5em;
    margin-top: 0.5em;
    font-size: 122%;
  }
  
  /* Sections for a ToC without parts  */
  .toc.no-parts > li > ol > li {
    font-size: 83%;
  }
  
  /* Sub-sections and below for a ToC without parts */
  .toc.no-parts > li > ol > li > ol {
    font-size: 80%;
  }
  
  /* ToC with Parts */
  .toc.has-parts > li  {
    margin-bottom: 1em;
    margin-top: 1em;
    font-size: 120%;
  }
  
  /* Chapters for a ToC with parts  */
  .toc.has-parts > li > ol > li {
    font-size: 83%;
  }
  
  /* Sections and below for a ToC with parts */
  .toc.has-parts > li > ol > li > ol {
    font-size: 80%;
  }
  
  .toc li {
    list-style: none;
    padding-left: 0;
    margin-left: 1em;
  }
  .section-number {
    font-weight: bold;
  }
  
  /* Dedication */
  section.dedication-centered {
    text-align: center;
  }
  
  section.dedication {
    font-style: italic;
    margin-top: 10em;
  }
  
  /* headings */
  
  h1#toc { text-align: left;}
  h1, h2, h3, h4, h5, h6 {
    font-family: sans-serif;
  
  }
  
  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }
  /* Parts */
  body.kramdown h1, body.markua h1.part {
     font-size: 2em;
     line-height: .8em;
     font-variant: small-caps;
     margin-top: 20%;
     text-align: center;
     padding: 0;
     font-weight: normal;
  }
  
  /* Chapters */
  h1#toc, body.kramdown h2, body.markua h1.chapter {
     font-size: 1.5em;
     margin-top: 10%;
     margin-bottom: 1em;
  }
  
  /* Sections */
  body.kramdown h3, body.markua h2.section {
     font-size: 1.17em;
     margin-top: 1em;
     margin-bottom: 0.25em;
  }
  
  body.kramdown h4, body.markua h3.subsection { margin-top: 1em;
     font-size: 1.12em;
     margin-bottom: 0.25em;
  }
  
  body.kramdown h5, body.markua h4.subsubsection { margin-top: 1em;
     font-size: 0.83em;
     margin-bottom: 0.25em;
  }
  
  body.kramdown h6, body.markua h5.subsubsubsection {
     font-size: 0.75em;
     margin: 0;
  }
  
  /* scene breaks */
  
  hr.scene-break {
    width: 80%;
    margin-left: 10%;
    margin-right: 10%;
    margin-top: 1em;
    margin-bottom: 1em;
  }
  
  .scene-break.space {
    margin-top: 1em;
  }
  
  .scene-break.stars {
    margin-top: 1em;
    margin-bottom: 1em;
    width: 100%;
    text-align: center;
  }
  
  /* Tables */
  table {
    margin: 10px auto 20px auto;
    border-collapse: collapse;
    page-break-inside: avoid;
    border-radius: 8px;
    box-shadow: 5px 5px 10px rgba(0,0,0,0.2);
    background-color: #f0f0f0;
  }
  
  /* Verschachtelte Tabellen (Untertabellen) */
  table table {
    margin: 5px;
    border-radius: 4px;
    box-shadow: 2px 2px 5px rgba(0,0,0,0.1);
  }
  
  tbody {
    padding-bottom: 40px;
  }
  
  tr {
    page-break-inside: avoid;
  }
  
  td, th {
    padding-right: 10px;
    border: thin solid;
  }
  
  th {
    text-align: left;
    font-size: 1.1em;
  }
  
  /* Quizzes */
  
  ol.quiz-questions > li {
    margin-top: 1em;
  }
  
  ol.quiz-questions ol.quiz-choices {
    padding-left: 1em;
  }
  
  ol.quiz-questions li p {
    text-indent: 0;
  }
  
  /* general text */
  
  p {
    text-indent: 0em;
    margin-top: 0.5em;
  }
  
  span.underline {
    text-decoration: underline;
  }
  
  span.strikethrough {
    text-decoration: line-through;
  }
  
  blockquote {
    color: #666666;
    margin: 1.5em 0em 1.5em 2em;
    padding-left: 3em;
    border-left: 0.5em #EEE solid;
  }
  
  /* code blocks */
  code.lineno, span.lineno {
    color: gray;
    font-size: 80%;
  }
  
  /* setting the display on a div to inline-block makes the epub reader try
     to fit the div on a single page.
     See http://www.pigsgourdsandwikis.com/2010/06/goodbye-widows-and-orphans-or-yes-you.html
  */
  figure.code {
    margin-top: 1em;
    margin-bottom: 1.5em;
    margin-left: 0;
    font-size: 90%;
  }
  
  figure.code figcaption + .highlight
  {
  border-top: thin solid #c2c2c2;
  border-bottom: thin solid #c2c2c2;
  }
  
  code {
    -webkit-hyphens: none;
  }
  
  figure.code div.highlight {
    -webkit-hyphens: none;
  }
  
  /* captions for codeblocks and tables */
  figure.code figcaption, table caption {
    page-break-after: avoid;
    margin-bottom: 0px;
  }
  
  table caption {
    text-align: center;
    font-size: 5em;
    font-weight: bold;
  }
  
  figure.code figcaption {
    margin-top: -10px;
    padding-top: -10px;
    text-indent: 0em;
  }
  
  table.with-caption {
    margin-top: 0px;
    padding-top: 0px;
    page-break-before: avoid;
  }
  
  .centered p {
    text-align: center;
    text-indent: 0em;
  }
  
  div.page-break {
    page-break-after: always;
  }
  
  /* asides */
  
  aside {
    font-size: 0.9em;
    border-style: solid;
    background-color: rgb(255,255,255);
    border-color: rgb(200,200,200);
    border-width: thin;
    margin: 1em;
    padding: 1em 1.5em;
  }
  
  aside h1, aside h2, aside h3, aside h4 {
    margin-bottom: 0.5em;
    margin-top: 0em;
    text-align: left;
  }
  
  /* tips, warnings, etc */
  aside.blurb {
    background-color: white;
    margin: 1em 1em 1em 0em;
    padding-left: 0;
    border-style: none;
    width: 80%; /* fallback */
    width: calc(100% - 60px);
    display: inline-block;
    padding-left: 60px;
    background-repeat: no-repeat;
    background-position: 0% 1em;
    background-size: 40px 40px;
  }
  
  /* Use the media query because Kindles don't support overflow */
  @media not amzn-mobi, not amzn-kf8 {
    aside.blurb {
      overflow: auto;
    }
  }
  
  
  
  /* Endnotes page */
  
  div.footnotes h1, div.footnotes h2 {
    text-align: left;
  }
  
  div.footnotes h1 {
    font-size: 1.5em;
  }
  
  div.footnotes h2 {
    font-size: 1.17em;
  }
  
  div.footnotes .endnote-number {
    padding-right: 0.5em;
    font-weight: bold;
    font-size: 1.2em;
  }
  
  /* force some space before and after code blocks */
  pre {
     margin-top: 0.5em;
     margin-bottom: 0.5em;
     font-family: monospace;
  }
  
  /* white-space: pre-wrap causes missing lines on page-breaks in older Kindles */
  
  @media not amzn-mobi7 {
    pre {
      white-space: pre-wrap;
    }
  }
  
  @media amzn-mobi7 {
    pre {
      white-space: pre;
    }
  }
  
  /* poems */
  div.poem pre {
    font-family: serif;
  }
  
  body {
  }
  
  /* image equations */
  img.inline-equation {
     height: 1em;
  }
  
  img.block-equation {
    margin-top: 0.5em;
    margin-right: auto;
    margin-bottom: 0.5em;
    margin-left: auto;
    text-align: center;
    display: block;
  }
  
  /* Lists */
  ul, ol {
    margin-top: 1em;
  }
  
  /* nested lists should not have a margin */
  ul ul, ul ol, ol ul, ol ol {
    margin-top: 0.1em;
  }
  
  ol.arabic {
    list-style-type: decimal;
  }
  
  ol.lower-roman {
    list-style-type: lower-roman;
  }
  
  ol.lower-alpha {
    list-style-type: lower-alpha;
  }
  
  ol.upper-alpha {
    list-style-type: upper-alpha;
  }
  
  /* Prevents overflow in non-iBooks epub readers */
  /* Use the media query because Kindles don't support max-width */
  @media not amzn-mobi, not amzn-kf8 {
    img {
      max-width: 100%;
    }
  }
  
  /* used to center div surrounding an image with a caption */
  .center {
    margin-left: auto;
    margin-right: auto;
  }
  
  /* captions for images and tables */
  p.caption, table caption, figure.image figcaption {
    font-size: 0.7em;
    font-weight: bold;
  }
  
  /* Images with captions */
  
  figure.image {
    width: 100%;
    text-align: center;
  }
  
  figure.image img {
    display: inline-block;
  }
  
  figure.image figcaption {
    text-align: center;
    margin: 0em !important;
    padding: 0em !important;
    text-indent: 0em !important;
    page-break-before: avoid;
  }
  
  figure.image.floatleft {
    float: left;
    clear: left;
    margin-right: 1em;
    margin-left: 0;
  }
  
  figure.image.floatright {
    float: right;
    clear: right;
    margin-left: 1em;
    margin-right: 0;
  }
  
  figure.image.floatleft, figure.image.floatright {
    width: 50%;
  }
  
  figure.image.floatleft img, figure.image.floatright img {
    width: 100% !important;
    vertical-align: text-top;
    margin: .5em !important;
  }
  
  figure.image.floatleft figcaption, figure.image.floatright figcaption {
    width: 100%;
  }
  
  /* styles for inserted (uil) and deleted (udl) lines */
  .udl {
    text-decoration: line-through;
  }
  
  .uil {
    font-weight: 900;
  }
  
  .video-fallback-mobi {
    display: none;
  }
  
  @media amzn-kf8 {
    figure.video, video, video p {
      display: none;
    }
  
    .video-fallback-mobi {
      display: block;
    }
  }
  
  @media amzn-mobi7 {
    video {
      display: none;
    }
  
    .video-fallback-mobi {
      display: block;
    }
  }
  
  /* NOTE: I replaced this line:
   * .err { border: 1px solid #FF0000 }
   * with this:
   * .err { color: #FF0000 }
   * to get rid of the ugly red boxes
   */
  /* ============================================================================== */
  /* everything below this line is generated by */
  /* rake generate:pygments:styles[default] */
  
  .hll { background-color: #ffffcc }
  .c { color: #408080; font-style: italic } /* Comment */
  .err { color: #FF0000 }
  .k { color: #008000; font-weight: 600 } /* Keyword */
  .o { color: #666666 } /* Operator */
  .cm { color: #408080; font-style: italic } /* Comment.Multiline */
  .cp { color: #BC7A00 } /* Comment.Preproc */
  .c1 { color: #408080; font-style: italic } /* Comment.Single */
  .cs { color: #408080; font-style: italic } /* Comment.Special */
  .gd { color: #A00000 } /* Generic.Deleted */
  .ge { font-style: italic } /* Generic.Emph */
  .gr { color: #FF0000 } /* Generic.Error */
  .gh { color: #000080; font-weight: 600 } /* Generic.Heading */
  .gi { color: #00A000 } /* Generic.Inserted */
  .go { color: #888888 } /* Generic.Output */
  .gp { color: #000080; font-weight: 600 } /* Generic.Prompt */
  .gs { font-weight: 600 } /* Generic.Strong */
  .gu { color: #800080; font-weight: 600 } /* Generic.Subheading */
  .gt { color: #0044DD } /* Generic.Traceback */
  .kc { color: #008000; font-weight: 600 } /* Keyword.Constant */
  .kd { color: #008000; font-weight: 600 } /* Keyword.Declaration */
  .kn { color: #008000; font-weight: 600 } /* Keyword.Namespace */
  .kp { color: #008000 } /* Keyword.Pseudo */
  .kr { color: #008000; font-weight: 600 } /* Keyword.Reserved */
  .kt { color: #B00040 } /* Keyword.Type */
  .m { color: #666666 } /* Literal.Number */
  .s { color: #BA2121 } /* Literal.String */
  .na { color: #7D9029 } /* Name.Attribute */
  .nb { color: #008000 } /* Name.Builtin */
  .nc { color: #0000FF; font-weight: 600 } /* Name.Class */
  .no { color: #880000 } /* Name.Constant */
  .nd { color: #AA22FF } /* Name.Decorator */
  .ni { color: #999999; font-weight: 600 } /* Name.Entity */
  .ne { color: #D2413A; font-weight: 600 } /* Name.Exception */
  .nf { color: #0000FF } /* Name.Function */
  .nl { color: #A0A000 } /* Name.Label */
  .nn { color: #0000FF; font-weight: 600 } /* Name.Namespace */
  .nt { color: #008000; font-weight: 600 } /* Name.Tag */
  .nv { color: #19177C } /* Name.Variable */
  .ow { color: #AA22FF; font-weight: 600 } /* Operator.Word */
  .w { color: #bbbbbb } /* Text.Whitespace */
  .mf { color: #666666 } /* Literal.Number.Float */
  .mh { color: #666666 } /* Literal.Number.Hex */
  .mi { color: #666666 } /* Literal.Number.Integer */
  .mo { color: #666666 } /* Literal.Number.Oct */
  .sb { color: #BA2121 } /* Literal.String.Backtick */
  .sc { color: #BA2121 } /* Literal.String.Char */
  .sd { color: #BA2121; font-style: italic } /* Literal.String.Doc */
  .s2 { color: #BA2121 } /* Literal.String.Double */
  .se { color: #BB6622; font-weight: 600 } /* Literal.String.Escape */
  .sh { color: #BA2121 } /* Literal.String.Heredoc */
  .si { color: #BB6688; font-weight: 600 } /* Literal.String.Interpol */
  .sx { color: #008000 } /* Literal.String.Other */
  .sr { color: #BB6688 } /* Literal.String.Regex */
  .s1 { color: #BA2121 } /* Literal.String.Single */
  .ss { color: #19177C } /* Literal.String.Symbol */
  .bp { color: #008000 } /* Name.Builtin.Pseudo */
  .vc { color: #19177C } /* Name.Variable.Class */
  .vg { color: #19177C } /* Name.Variable.Global */
  .vi { color: #19177C } /* Name.Variable.Instance */
  .il { color: #666666 } /* Literal.Number.Integer.Long */
  