body {
  background: #fff;
  font-family: Calibri, Arial, Times New Roman;
}
.container_12 {
  padding-bottom: 30px;
}
.standard_grade {
  background: #86ae8b;
  /* Old browsers */
  background: -moz-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(15%, #86ae8b), color-stop(100%, #47634c));
  /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* Opera 11.10+ */
  background: -ms-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* IE10+ */
  background: linear-gradient(to bottom, #86ae8b 15%, #47634c 100%);
  /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#86ae8b', endColorstr='#47634c', GradientType=0);
  /* IE6-9 */
}
.standard_inner_shadow {
  -webkit-box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, 0.2);
  box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, 0.2);
}
.standard_outer_shadow {
  -webkit-box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.1);
  box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.1);
}
.standard_box {
  background: #86ae8b;
  /* Old browsers */
  background: -moz-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(15%, #86ae8b), color-stop(100%, #47634c));
  /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* Opera 11.10+ */
  background: -ms-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* IE10+ */
  background: linear-gradient(to bottom, #86ae8b 15%, #47634c 100%);
  /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#86ae8b', endColorstr='#47634c', GradientType=0);
  /* IE6-9 */
  -webkit-box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.1);
  box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.1);
  -webkit-box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, 0.2);
  box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, 0.2);
  border: 0px 0px 1px 0px solid rgba(0, 0, 0, 0.2);
}
.dark_shadow {
  text-shadow: -1px -1px 0px rgba(0, 0, 0, 0.35);
  filter: dropshadow(color=rgba(0, 0, 0, 0.35), offx=-1, offy=-1);
}
.hidden {
  display: none;
}
.clear {
  clear: both;
}
h1 {
  font-size: 36px;
  font-weight: bold;
}
#header {
  min-height: 80px;
  background: #86ae8b;
  /* Old browsers */
  background: -moz-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(15%, #86ae8b), color-stop(100%, #47634c));
  /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* Opera 11.10+ */
  background: -ms-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* IE10+ */
  background: linear-gradient(to bottom, #86ae8b 15%, #47634c 100%);
  /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#86ae8b', endColorstr='#47634c', GradientType=0);
  /* IE6-9 */
  -webkit-box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.1);
  box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.1);
  -webkit-box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, 0.2);
  box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, 0.2);
  border: 0px 0px 1px 0px solid rgba(0, 0, 0, 0.2);
  padding-top: 20px;
}
#header img {
  float: left;
}
#header nav {
  float: right;
  margin: 15px 0px 0px 0px;
}
#header nav a {
  margin: 0px 5px 0px 0px;
  font-size: 20px;
  text-decoration: none;
  color: #fff;
  text-shadow: -1px -1px 0px rgba(0, 0, 0, 0.35);
  filter: dropshadow(color=rgba(0, 0, 0, 0.35), offx=-1, offy=-1);
  font-weight: bold;
  padding: 5px 10px;
}
#header nav a:hover {
  background-color: rgba(0, 0, 0, 0.15);
  -webkit-border-radius: 5px;
  border-radius: 5px;
}
@media only screen and (min-device-width: 320px) and (max-device-width: 480px) {
  #header nav a {
    font-size: 14px;
  }
}
@media only screen and (-webkit-min-device-pixel-ratio: 1.5), only screen and (min-device-pixel-ratio: 1.5) {
  #header nav a {
    font-size: 14px;
  }
}
#content {
  margin-top: 20px;
}
#content article:last-of-type {
  margin-bottom: 30px;
}
#content article {
  float: left;
  font-size: 16px;
  width: 620px;
  color: #47634c;
}
#content article h2 {
  font-weight: bold;
  font-size: 24px;
  margin-top: 30px;
}
#content article p {
  margin-top: 20px;
}
#content article ul.equation {
  margin-top: 20px;
  margin-left: 20px;
  list-style: none;
  font-weight: bold;
}
#content article img.centered {
  margin: 0 auto;
  max-width: 610px;
  margin-top: 20px;
}
#content article img.left {
  float: left;
  padding-right: 15px;
}
#content aside {
  border-left: 2px solid rgba(71, 99, 76, 0.3);
  float: right;
  color: #47634c;
  padding-bottom: 50px;
  margin-top: 30px;
}
#content aside h1 {
  margin-left: 50px;
}
#content aside ul {
  margin: 20px 0px 0px 50px;
  list-style: none;
}
#content aside ul li {
  margin-bottom: 20px;
  font-size: 16px;
  width: 230px;
}
#content aside ul li a {
  text-decoration: none;
  color: #47634c;
}
#content aside ul li a.active {
  font-weight: bold;
}
#content aside ul li span {
  font-weight: bold;
  float: left;
  padding-right: 20px;
  width: 50px;
}
#content aside ul.sub_menu li {
  margin-bottom: 5px;
}
#content aside button {
  background: #86ae8b;
  /* Old browsers */
  background: -moz-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(15%, #86ae8b), color-stop(100%, #47634c));
  /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* Opera 11.10+ */
  background: -ms-linear-gradient(top, #86ae8b 15%, #47634c 100%);
  /* IE10+ */
  background: linear-gradient(to bottom, #86ae8b 15%, #47634c 100%);
  /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#86ae8b', endColorstr='#47634c', GradientType=0);
  /* IE6-9 */
  -webkit-box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.1);
  box-shadow: 0px 1px 0px 0px rgba(0, 0, 0, 0.1);
  -webkit-box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, 0.2);
  box-shadow: inset 0px 1px 0px 0px rgba(255, 255, 255, 0.2);
  border: 0px 0px 1px 0px solid rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(0, 0, 0, 0.2);
  margin-left: 50px;
  padding: 15px 0px 15px 0px;
  width: 200px;
  font-size: 24px;
  color: #fff;
  text-shadow: -1px -1px 0px rgba(0, 0, 0, 0.35);
  filter: dropshadow(color=rgba(0, 0, 0, 0.35), offx=-1, offy=-1);
}
#content aside button:hover {
  cursor: pointer;
}
#content aside button.login {
  margin-left: 0px;
  margin-top: 10px;
}
.peKenBurns {
  margin-top: 5px!important;
  width: 920px;
  height: 400px;
  margin: 0 auto;
  border: 1px;
}
.peKenBurns .peKb_slides {
  padding: 3px;
  border-radius: 0;
  -webkit-border-radius: 0;
}
.peKenBurns .peKb_slides .peKb_caption .peKb_real {
  padding: 5px!important;
}
.peKb_mainPanel {
  height: 45px!important;
}
article ul {
  margin-bottom: 5px;
}
article ul li {
  list-style: disc;
}
article ul li ul li {
  list-style: circle;
  margin-left: 20px;
}