body {
  background: #f8f8f8;
  position: relative;
  line-height: 1.5;
  font-family: 'Raleway', sans-serif;
}

h1, h2 {
  font-weight: 700;
}

h2.chapter{
  font-weight: 900;
  margin-top: 50px;
}

h3 span {
  color: #286090;
}

.jumbotron {
  border-radius: 0px;
  background: #ffffff;
  margin-bottom: 0;
  text-align: center;
  border: 1px solid transparent;
  background: #ffffff;
  border: 1px solid;
  border-radius: 2px;
  border-color: #e9e9e9;
}

.jumbotron button {
  margin-top: 10px;
}

.chapter > div{
  margin-top: 30px;
  margin-bottom: 10px;
  padding: 20px;
  /*-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
  -moz-box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);*/
  background: #ffffff;
  border: 1px solid;
  border-radius: 2px;
  border-color: #e9e9e9;

}

section.section {
  margin-top: 30px;
  margin-bottom: 10px;
  padding: 20px;
  /*-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
  -moz-box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);*/
  background: #ffffff;
  border: 1px solid transparent;
  border-radius: 2px;
  border-color: #e9e9e9;
}

section.subsection {
  margin-top: 30px;
}

section:last-child {
  border-bottom: none;
}

#content{
  margin-top: 30px;
}

#nav{
  margin-top: 50px;
}


.nav {
  background: #30426a;
}

.nav .contents{
  color: white;
  padding: 18px 0px 15px 30px;
  background: #2d3e63;
}

.nav a {
  color: #b2bfdc;
  font-style: italic;
}

.nav li a:hover,
.nav li a:focus {
  background: #2d3e63;
}

.nav .active {
  font-weight: bold;
  /*background: #72bcd4;*/
}

.nav .nav {
  display: none;
}

.nav .active .nav {
  display: block;
}

.nav>li>a {
  padding-top: 5px;
  padding-left: 30px;
}
.nav .nav a {
  font-weight: normal;
  text-decoration: none;
  font-size: .85em;
  padding-left: 40px;
}

.nav .nav span {
  margin: 0 5px 0 2px;
}

.nav .nav .active a,
.nav .nav .active:hover a,
.nav .nav .active:focus a {
  text-decoration: underline;
  /*padding-left: 30px;
    border-left: 5px solid black;*/
}

.nav .nav .active span,
.nav .nav .active:hover span,
.nav .nav .active:focus span {
  display: none;
}

.application {
  border-top: 1px solid #c1e1ec;
}

.affix-top {
  position: relative;
}

.affix {
  top: 0px;
}

.affix,
.affix-bottom {
  /*width: 213px;*/
}

.affix-bottom {
  position: absolute;
}

footer {
  border-top: 1px solid #c1e1ec;
  height: 50px;
}

footer p {
  line-height: 50px;
  margin-bottom: 0;
}

@media (min-width:1200px) {
  .affix,
  .affix-bottom {
    width: 263px;
  }
}

.img img {
  display: block;
  margin-top: 10px;
  margin-right: auto;
  margin-left: auto;
}

.figure {
  border: solid 1px #ccc;
  padding: 10px;
  margin-bottom: 10px;
}

.figure h4{
  text-align: center;
  margin-top:30px
}

.code h5{
  font-weight: 900;
  margin-top: 20px;
  margin-bottom: 3px;
}


ul.sidebar .submenu-item {
  margin-left: 10px;
}

nav {
  background-color: #30426A;
  border-color: #30426A;
}

.navbar-brand img{
  height: 45px;
  margin-top: -10px;
}

.navbar-nav {
  margin-top: 12px;
}

.nav .open>a, .nav .open>a:focus, .nav .open>a:hover {
  background-color: #30426A;
}

.dropdown-menu>li>a:hover {
  color: white;
}