.navbar .navbar-nav-logo {
  background: rgba(0, 0, 0, 0.5) url("ETching_crab.jpg");
  background-blend-mode: overlay;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  text-align: center;
  padding: 3rem 0;
  color: white;
}

.navbar .navbar-nav-logo h1 {
  margin: 0;
  text-transform: uppercase;
  font-size: 40px;
}

.navbar .navbar-nav-logo p {
  margin: 1rem 0;
  font-size: 20px;
}

.navbar .navbar-nav {
  margin: 1rem 0;
}
.footer {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: space-evenly;
      -ms-flex-pack: space-evenly;
          justify-content: space-evenly;
  text-align: center;
  margin: 2rem 0;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 2rem 0;
  width: 100%;
  margin: 0 auto;
  border-top: 1px solid #333333;
}

.footer .big-lab img {
  height: auto;
  width: 50%;
}

.footer .hanyang img {
  height: auto;
  width: 50%;
}

.active {
  color: #0d93d0 !important;
}