body {
    background-color: azure;
    color: #234;
}

header {
    margin-bottom: 12px;
}

main#photos {
    min-height: 100px;
    display: flex;
    padding: 8px;
}

main#photos section {
    border: 6px solid blue;
    min-height: 100px;
    margin: 20px;
}

.thumbnails {
    flex: 0 0 360px;
    display: flex;
    justify-content: center;
    flex-flow: row wrap;
    gap: 8px;
}

.thumbnails figure {
    flex: 0 0 150px;
    aspect-ratio: 1;
    background-size: cover;
    background-position: center;
}

.thumbnails figure:hover {
    cursor: pointer;
}

.figure1 {
    background-image: url(../images/photo_album/coco1_small.jpg);
}

.figure2 {
    background-image: url(../images/photo_album/coco2_small.jpg);
}

.figure3 {
    background-image: url(../images/photo_album/different_small.jpg);
}

.figure4 {
    background-image: url(../images/photo_album/elephant1_small.jpg);
}

.figure5 {
    background-image: url(../images/photo_album/elephant2_small.jpg);
}

.figure6 {
    background-image: url(../images/photo_album/loki1_small.jpg);
}

.figure7 {
    background-image: url(../images/photo_album/loki2_small.jpg);
}

.figure8 {
    background-image: url(../images/photo_album/loki3_small.jpg);
}

#bigsection {
    text-align: center;
    padding-top: 12px;
    flex: 1 1 auto;
}

#bigimage {
    width: 95%;
}

#bigcaption {
    font-size: 2rem;
    width: 80%;
    margin: 0 auto;
    text-align: left;
    margin-bottom: 8px;
}

.return-home {
  position: absolute;
  top: 30px;
  left: 10px;
  color: green;
  text-decoration: none;
  font-weight: bold;
  font-size: 2em;
  transition: color 0.3s;
}

.return-home:hover {
  color: black;
}