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

header {
    border: 4px solid red;
    margin-bottom: 12px;
}

main#photos {
    border: 4px solid black;
    min-height: 100px;
    display: flex;
    flex-direction: row;
    padding: 8px;
}

main#photos section {
    border: 4px solid orange;
    min-height: 100px;
}

#thumbnails {
    flex: 1 0 360px;
    display: flex; /* also a flex parent */
    justify-content: center;
    flex-flow: row wrap;
    gap: 8px;
}

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

#thumbnails figure {
    border: 4px solid hotpink;
    flex: 0 0 150px;
    aspect-ratio: 1;
    background-size: cover;
    background-position: center;
}

#thumbnails figure:hover {
    cursor: pointer;
}

#bigimage {
    width: 95%;
}

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

.figure1 {
    background-image: url(../images/2024-thumb.jpg);
}
.figure2 {
    background-image: url(../images/Tank-thumb.jpg);
}

.figure3 {
    background-image: url(../images/Mask-thumb.jpg);
}

.figure4 {
    background-image: url(../images/Float-thumb.jpg);
}
.figure5 {
    background-image: url(../images/Drop-thumb.jpg);
}
.figure6 {
    background-image: url(../images/Look-thumb.jpg);
    background-position: center;
}