.port-image {
  width:100%;
}

.col-md-3 {
  margin-bottom:20px;
}

.each-item {
  position:relative;
  overflow:hidden;
}

.each-item:hover .cap2, .each-item:hover .cap1 {
  left:0px;
}

.cap1 {
  position:absolute;
  width:100%;
  height:70%;
  background:rgba(255,255,255,0.5);
  top:0px;
  left:-100%;
  padding:10px;
  transition:all .5s;
}

.cap2 {
  position:absolute;
  width:100%;
  height:30%;
  background:rgba(0,178,255,0.5);
  bottom:0px;
  left:100%;
  padding:10px;
  transition:all .5s;
}