/*Portfolio*/
#portfolio {
  background: #f1f1f1;
}
/*Portfolio Overlay */
.portfolio-item {
  position: relative;
  margin-bottom: 10px;
  border: 2px solid #000;
}
.portfolio-item img {
  width: 100%;
}
.portfolio-item .overlay {
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.80);
  display: none;
}
.portfolio-item:hover .overlay {
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.80);
  display: block;
}
.portfolio-item .icons .preview {
  position: absolute;
  left: 40%;
  top: 40%;
  color: #fff;
  -webkit-animation-name: fadeInLeft;
  animation-name: fadeInLeft;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
}
.portfolio-item .icons .preview i {
  color: #fff;
}