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

.root {
    font-size: 62.5%;
}

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

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

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

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

.thumbnails {
    flex: 1 0 300px;
    display: flex;
    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 transparent;
    flex: 0 0 150px;
    aspect-ratio: 1;
    background-size: cover;
    background-position: center;
}

.thumbnails figure:hover {
    cursor: pointer;
}

#bigimage {
    width: 70%;
    max-width: 700px;
}

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

.fig1 {
    background-image: url(../images/travel_la_small.jpg);
}

.fig2 {
    background-image: url(../images/travel_la_theatre_small.jpg);
}

.fig3 {
    background-image: url(../images/travel_losthills_small.jpg);
}

.fig4 {
    background-image: url(../images/travel_nyc_small.jpg);
}

.fig5 {
    background-image: url(../images/travel_sf_small.jpg);
}

.fig6 {
    background-image: url(../images/travel_berlin_small.jpg);
}

.fig7 {
    background-image: url(../images/travel_lon_bridge_small.jpg);
}

.fig8 {
    background-image: url(../images/travel_lon_bus_small.jpg);
}

.fig9 {
    background-image: url(../images/travel_lon_guard_small.jpg);
}

.fig10 {
    background-image: url(../images/travel_dc_small.jpg);
}