body {
  background-color: #2f2f2f;
  height: 100%;
  margin: 0;
}
.navbar {
  box-shadow: 2px 2px 5px #123c73;
  opacity: 0.9;
  background: #fff;
}
.navbar .nav-item {
  font-size: 1.4rem;
  padding-right: 1.4rem;
}
#img_blur {
}
#showcase {
  position: relative;
  /*background: url("../img/mainbackground.jpg") no-repeat center center fixed;*/
  background: url("https://static.wixstatic.com/media/5bb82d4a799849efa1a5cacda245f8fd.jpg/v1/fill/w_1920,h_1282,al_c,q_85,usm_0.66_1.00_0.01/5bb82d4a799849efa1a5cacda245f8fd.jpg") no-repeat center center fixed;    
 /* Add the blur effect */
 /* filter: blur(8px);
  -webkit-filter: blur(8px);*/
  min-height: 1500px;
}
#showcase .primary-overlay {
  background: rgba(120, 120, 120, 0.6);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.info-header {
  width: 50%;
  margin: auto;
  color: #000000;
  background-color: #FFF;
  border-bottom: 1px #ddd solid;
}
#authors img {
  margin-top: -50px;
}
#authors .card:hover {
  background: #FFF;
  color: #444;
}
#authors .fab {
  color: #444;
}

@media (max-width: 768px) {
  #showcase {
    min-height: 500px;
  }
  #showcase h1 {
    font-size: 4rem;
  }

  .mb-resp {
    margin-bottom: 1rem;
  }
}