* {
    box-sizing: border-box;
}


.row1 {
  display: flex;
  flex-wrap: wrap;
  padding: 0 4px;
}

/* Create four equal columns that sits next to each other */
.column1 {
  flex: 25%;
  max-width: 25%;
  padding: 0 4px;
}

.column1 img {
  margin-top: 8px;
  vertical-align: middle;
  width: auto;

}

.gallery {
  margin: auto;
  text-align: center;
}

/* Responsive layout - makes a two column-layout instead of four columns */
@media screen and (max-width: 800px) {
  .column1 {
    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) {
  .column1 {
    flex: 100%;
    max-width: 100%;
  }
}