* {
    margin: 0; padding: 0;
    border: 0;
    box-sizing: border-box;
}

body {
    background-color: skyblue;
    color: #234;
    font-size: 62.5%;
}

header {
    border: 2px solid transparent;
    margin-bottom: 12px;
    text-align: center;
    font-size: x-large

}

main#photos {
    border: 2px solid black;
    min-height: 100px;
    display: flex;
    padding: 8px;
}

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

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

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

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

.thumbnails figure:hover {
    cursor: pointer;
}

.bigimage {
    flex: 1 1 auto;
}

#bigimage {
    width: 50%;
    text-align: center;
}

#bigcaption {
    font-size: 1.2rem;
    width: 80%;
    margin: 0 auto;
    text-align: left;
    margin-bottom: 8px;
}
.figure1 {
    background-image: url(../images/blackbutte-thumb.jpg)
}

.figure2 {
    background-image: url(../images/greenlakes-thumb.jpg)
}

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

.figure4 {
    background-image: url(../images/waterfall-thumb.jpg);
}

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

.figure6 {
    background-image: url(../images/nonamelake-thumb.jpg);
}