/* CSS Document */
* {
  box-sizing: border-box;
}

.header {
  text-align: center;
  padding: 32px;
}

.row_foto {
  display: -ms-flexbox; /* IE10 */
  display: flex;
  -ms-flex-wrap: wrap; /* IE10 */
  flex-wrap: wrap;
  padding: 0 4px;
}

/* Create four equal columns that sits next to each other */
.column {
/*  -ms-flex: 33.3%; 
  flex: 33.3%;
  max-width: 33.3%;*/
  padding: 0 4px;
}

.column img {
  margin-top: 8px;
  vertical-align: middle;
  width: 100%;
}

.container-foto {
  position: relative;
  width:100%;
 
}

.image {
  display: block;
  width: 100%;
  height: auto;
}

.overlay {
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  background-color:rgba(197,205,201,0.40);
  overflow: hidden;
  width: 100%;
  height:0;
  transition: .5s ease;
}

.container-foto:hover .overlay {
  bottom: 0;
  width:100%;
  height: 100%;
}

.text {
  color: white;
  font-size: 20px;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  text-align: center;
}

/* Responsive layout - makes a two column-layout instead of four columns */
@media screen and (max-width: 800px) {
  .column {
    -ms-flex: 50%;
    flex: 50%;
    max-width: 50%;
  }
}

/* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
  .column {
    -ms-flex: 100%;
    flex: 100%;
    max-width: 100%;
  }
}