/*---------- a. portfolio -----------*/
ul.portfolio-image {
  list-style: none;
  position: relative;
  width: 100%;
  padding: 0;
  margin: 0;
}
ul.portfolio-image li {
  float: left;
  display: block;
  list-style: none;
  position: relative;
  display: inline-block;
  overflow: hidden;
  padding-top: 46%;
}
ul.portfolio-image li:hover {
  cursor: pointer;
}
ul.portfolio-image li:hover img {
  -webkit-filter: grayscale(20%);
  transform: scale(1.15);
}
ul.portfolio-image li:hover .image-bg {opacity: 1;}
ul.portfolio-image li:hover .description-wrap {
  background: rgba(186, 186, 186, 0.6);
}
ul.portfolio-image li img {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  -webkit-filter: grayscale(100%);
  transition: filter, transform, 0.5s;
}
ul.portfolio-image li .decription-wrap {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: rgba(242, 242, 242, 0.4);
  padding: 20px;
  transition: background, 0.5s;
}
ul.portfolio-image li .image-bg {
  color: #2f2f2f;
  background: #ffffff;
  background: rgba(255, 255, 255, 0.9);
  font-size: 14px;
  text-transform: uppercase;
  width: 100%;
  height: 100%;
  display: inline-block;
  -ms-transform: translate(-50%, -50%); /* IE 9 */
  -webkit-transform: translate(-50%, -50%); /* Chrome, Safari, Opera */
  transform: translate(-50%, -50%);
  top: 50%;
  left: 50%;
  padding: 10px 0;
  position: relative;
  margin: 0 auto;
  text-align: center;
  opacity: 0;
  transition: opacity, 0.5s;
  letter-spacing: 1.5px;
  font-weight: 300;
  color: transparent;
}
ul.portfolio-image li .desc{
  position: absolute;
  z-index: 1;
  top: 45%;
  left: 0;
  display: table-cell;
  right: 0;
  text-align: center;
  color: #009cc0;
  font-size: 14px;
  font-weight: 700;
}