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

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

.column img {
  margin-top: 8px;
  vertical-align: middle;
  width: 100%;
}
button {
  border: none;
  color: white;
  padding: 16px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
}

.button1 {
  background-color: white;
  color: black;
  border: 2px solid #04AA6D;
}

.button1:hover {
  background-color: #04AA6D;
  color: white;
}

/* Container holding the image and the text */
.container {
  position: relative;
  text-align: center;
  color: rgb(0, 0, 0);
}

/* Top right text */
.top-right {
  position: absolute;
  bottom: 8px;
  right: 16px;
  padding: 8px;
  background-color: rgb(159, 208, 252, 0.8);
 font-size: x-small;
}
.gallery img:hover{
  filter: grayscale(100%);
  transform: scale(1.1);
}

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