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

/* Create four equal columns that sits next to each other */
.column {
 flex: 33%;
 max-width: 33%;
 padding: 0 4px;
}

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

/* 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%;
 }
}