CSS

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

@import url("https://fonts.googleapis.com/css2?family=Raleway");
@import url("https://fonts.googleapis.com/css2?family=Poppins");

.book.font-family-1 {font-family: 'Poppins', sans-serif;}

p {color: #004b70;}
li {color: #004b70;}

h1, h2, h3, h4 {
  font-family: 'Raleway', sans-serif;
  color: #004b70;
}

.title {
  font-family: 'Raleway', sans-serif;
  color: #004b70;
 }

.subtitle {
  font-family: 'Raleway', sans-serif;
  color: #004b70;
}

h3 {color: #00998e;}
h4 {color: #00998e;}

/*--- LOGO ---*/

.toc-logo {
  width: 300px !important;
  object-fit: contain;
  margin: 0 auto;
  display: block;
}

.toc-logo img {
  max-width: 100%;
  margin-bottom: 10px;
}

.summary > li:first-child {
  height: auto !important;
}

/*------------ TOC --------------*/

.book .book-summary {
  background: #f3f6f8;
  border-right: none;
}

.summary{
font-family: 'Raleway', sans-serif;
}

  /* all TOC list items, basically */

.book .book-summary ul.summary li a,
.book .book-summary ul.summary li span {
  padding-top: 8px;
  padding-bottom: 8px;
  padding-left: 15px;
  padding-right: 15px;
  color: #004b70;
}

.summary a:hover {
  color: #00998e !important;
}

.book .book-summary ul.summary li.active>a { /*active TOC links*/
  color: #00998e !important;
  border-left: solid 4px;
  border-color: #00998e;
  padding-left: 11px !important;
}

/* -----------Sidebar div tips------------- */
/* from r-pkgs.org*/

div.note {
    padding: 1em;
    margin: 1em 0;
    background-size: 70px;
    background-repeat: no-repeat;
    background-position: 15px center;
    min-height: 120px;
    color: #f3faf8;
    background-color: #f3faf8;
    border: solid 5px #f3faf8;
  }

  div.ref {
    font-size: 9px;
    padding: 0.8em;
    margin: 0.8em 0;
    background-size: 45px;
    background-repeat: no-repeat;
    background-position: 15px center;
    min-height: 45px;
    color: #f3f6f8;
    background-color: #f3f6f8;
    border: solid 5px #f3f6f8;
  }