nav .container {
  background-image: url(../images/attributions-images/labbgc-min.png);
}
nav .container .pic {
  filter: hue-rotate(160deg);
}
article p {
  margin-top: 20px;
}
article h2 {
  margin: 30px 0 0;
  display: inline-block;
  line-height: calc(320px / 522 * 73);
  background-image: url(../images/implementation-images/title.png);
  background-size: 100% calc(320px / 522 * 73);
  min-width: 320px;
  margin-left: -23px;
  padding-left: 33px;
  padding-right: 33px;
}
article h3 {
  margin-top: 20px;
  font-weight: normal;
}
article h3 img {
  margin-right: 5px;
  width: 28px;
  vertical-align: middle;
}
article h5 {
  width: 80%;
  margin: 10px auto;
  text-align: center;
  font-size: 14px;
  line-height: 20px;
  color: #9e9e9f;
  font-weight: normal;
}
article a {
  color: #3d8ef2;
}
article a:hover {
  text-decoration: underline;
}
article sup,
article sub {
  font-size: 12px;
}
article .oneimg img {
  display: block;
  margin: 15px auto 5px;
  width: 50%;
}
article .twoimg img {
  width: 47%;
  padding: 1% 5% 8px;
  vertical-align: middle;
}
article .twoimg img:nth-child(2) {
  width: 53%;
}
article table {
  margin: 20px auto 10px;
  border-collapse: separate;
  border-spacing: 0;
}
article table td,
article table th {
  text-align: center;
  padding: 5px;
  font-size: 16px;
  line-height: 20px;
}
article table tr :first-child {
  font-family: 'Times New Roman';
}
article table tr:first-child th {
  background-color: #f2f2f2;
  border-top: 2px solid #000;
  border-bottom: 2px solid #000;
}
article table tr:last-child td {
  border-bottom: 2px solid #000;
}
article .math0 {
  font-size: 12px;
}
article .reference {
  margin-top: 100px;
  line-height: 28px;
  margin-bottom: 10px;
}
article .reference p {
  font-size: 16px;
  margin-top: 0;
}