style.css

@import url("fonts/sketchrockwell/font.css"); /*font-family:"SketchRockwellRegular"*/
@import url("fonts/handsean/font.css");/*font-family:"HandOfSeanRegular"*/

p.caption {
  color: #777;
  margin-top: 10px;
}
p code {
  white-space: inherit;
}
pre {
  word-break: normal;
  word-wrap: normal;
}
pre code {
  white-space: inherit;
}

.level1 h1 {
    border-bottom: 1px solid;
}

.cover {
  width: 500px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.book .book-body .page-wrapper .page-inner h2 {
  font-family: "HandOfSeanRegular";
}

.book .book-summary {
  background: #FFFFFF ;
}

.book .book-body .page-wrapper .page-inner section.normal h1.title{
  font-size: 2.5em;
  line-height: 1em;
  font-family: "SketchRockwellRegular";
  text-align: right;
}

.book .book-body .page-wrapper .page-inner section.normal h1 {
    font-family: "SketchRockwellRegular";
  font-size: 2em;
    color: #1982D1;
}
.book .book-body  {
	background: #FFFFFF url(images/paper.jpg) repeat;
}

.book .book-body .page-wrapper .page-inner section {
  border-radius: 15px;
  border: 1px solid lightgray;
  padding: 30px;
}

#flip {
	-webkit-transform:rotate(-180deg);
	-moz-transform:rotate(-180deg);
	-o-transform:rotate(-180deg);
	transform:rotate(-180deg);
	ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=2)";
filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=2);
color: #C0C0C0;
}

.thintable {
  width: 100px;
}

.infobox, .rmdtechnical, .rmdimportant, .rmdnote, .rmdtip, .rmdwarning, .rmdrant, .rmdjoke, .rmdtweet {
    padding: 1em 1em 1em 4em;
    margin-bottom: 10px;
    background: #f5f5f5 5px center/3em no-repeat;
    background-position: 10px 10px;
}

.rmdnote {
  background-image: url("https://bookdown.org/yihui/bookdown/images/note.png");
}

.rmdjoke {
  background-image: url("icons/laughing.png");
}

.rmdtweet {
  background-image: url("icons/twitter.png");
  background-repeat: no-repeat;
}

.rmdrant {
  background-image: url("icons/rant-icon.png");
  background-repeat: no-repeat;

}

.infobox {
  padding: 1em 1em 1em 4em;
  margin-bottom: 10px;
  border: 2px solid orange;
  border-radius: 10px;
  background: #f5f5f5 5px center/3em no-repeat;
}

.caution {
  background-image: url("images/caution.png");
}