.bg-primary {
  background-color: #21aabd !important;
}

hr {
  max-width: 50px;
  border-width: 3px;
  border-color: #21aabd;
  border-top: 0;
}

a {
  color: #f05f40;
  text-decoration: none;
}

.container-button {
  padding-top: 40px;
}

.portfolio-box .portfolio-box-caption {
  position: absolute;
  bottom: 0;
  display: block;
  width: 100%;
  height: 100%;
  text-align: center;
  opacity: 0;
  color: #fff;
  background: #21aabd;
  transition: all .2s;
}

.portfolio-box:hover .portfolio-box-caption {
  opacity: 85%;
}

.second-header {
  margin-top: auto !important;
  margin-bottom: auto !important;
}

@media (min-width: 768px) {
  .row-cols-md-2 > * {
    flex: 0 0 auto;
    width: 50%;
  }
}