.topic-latest-tabs {
  margin: 50px 0 25px 0;
}

.topic-latest-tabs .nav-tabs {
  border-bottom: 0; 
}

.topic-latest-tabs .nav-tabs > li {
  margin-right: 1em;
}

.topic-latest-tabs .nav-tabs > li > a {
  font-weight: 900;
  font-size: 1.2em;
  color: #9a9a9a;
}

.topic-latest-tabs .nav-tabs > li > a:hover {
  border-bottom: 0; 
}

.topic-latest-tabs .nav-tabs > li.active > a {
  color: #000000;
  font-weight: 900;
  font-size: 1.2em;
  border: 0;
  border-bottom: 2px solid #f7941e;
  background-color: transparent;
}

.topic-intro {
  margin: 0 auto;
}

@media (max-width: 767px) {
  .topic-intro {
    max-width: 90%;
    margin: 0;
  } 
}

.topic-intro p {
    font-size: 1.1em;
}

.topic-intro a.btn.btn-collapse {
  max-width: 200px;
  margin: 50px auto;
  display: block;
  color: #000000;
}

.topic-detail {
  width: 100%;
}

.topic-detail .topic-content {
  position: relative;
  padding-right: 15px;
  padding-left: 15px;
}