.card {
  background-color: white;
  border: none;
  box-shadow: 0px 1px 3px 0px rgba(0, 0, 0, 0.2),
    0px 1px 1px 0px rgba(0, 0, 0, 0.14), 0px 2px 1px -1px rgba(0, 0, 0, 0.12);
}
.card .card-title {
  font-weight: 400;
  font-size: 1.6rem;
}
.card .card-subtitle {
  font-weight: 500;
  font-size: 1rem;
  opacity: 0.5;
}
.card.card-cascade i {
  border-radius: 0.25rem;
  box-shadow: 0 5px 11px 0 rgba(0, 0, 0, 0.18), 0 4px 15px 0 rgba(0, 0, 0, 0.15);
}
.card.card-cascade i img {
  width: 100%;
}
.card.card-cascade [class*="card-img-"] {
  border-radius: 0.25rem;
  box-shadow: 0 5px 11px 0 rgba(0, 0, 0, 0.18), 0 4px 15px 0 rgba(0, 0, 0, 0.15);
}
.card.card-cascade.card-cascade-wider i {
  transform: scale(1.07);
  margin-bottom: 0.8rem;
}
.card.card-cascade.card-cascade-narrower i {
  transform: scale(0.92) translateY(-1.8rem);
  margin-bottom: -1rem;
}
.card .card-img-overlay {
  overflow: hidden;
  border-radius: 0.25rem;
  box-shadow: 0 5px 11px 0 rgba(0, 0, 0, 0.18), 0 4px 15px 0 rgba(0, 0, 0, 0.15);
  background-color: rgba(20, 20, 20, 0.5);
}
.author {
  font-family: inherit;
  padding: 3em;
  text-align: center;
  width: 100%;
}
.author a:link,
.author a:visited {
  color: #404040;
}
.author a:link:hover,
.author a:visited:hover {
  text-decoration: none;
}
.author .btn:link,
.author .btn:visited {
  text-decoration: none;
  display: inline-block;
  font-family: inherit;
  font-weight: 100;
  color: white;
  text-align: center;
  vertical-align: middle;
  user-select: none;
  background-color: black;
  padding: 1.5em 2rem;
  border-radius: 1em;
  transition: 0.5s all;
}
.author .btn:link:hover,
.author .btn:visited:hover,
.author .btn:link:focus,
.author .btn:visited:focus,
.author .btn:link:active,
.author .btn:visited:active {
  background-color: #1a1a1a;
}