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

body {
    padding: 10px;
    /* background-color: black; */
    background-color: white;
    color: chocolate;
    font-family: Arial, Helvetica, sans-serif;
    max-width: 900px;
    margin: auto;
}

#header {
    margin: 2rem auto 3rem;
    text-align: center;
}

#header h1 {
    margin-bottom: 2rem;
}

#header p {
    line-height: 1.5rem;
    width: 100%;
    max-width: 80ch;
    margin: auto;
    /*text-align: left;*/
}

/*
#thumbnails {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    max-width: 1000px;
    margin: auto;
}

.grid-box {
    max-width: 20vw;
    height: min(20vw, 20vw);
    flex-grow: 1;
    position: relative;
}
*/

/*
Another way (besides "outline" above) of adding an inside red line when hovering. Use box-shadow.
See https://www.tutorialrepublic.com/faq/how-to-place-border-inside-of-div-element-using-css.php
    https://www.tutorialrepublic.com/codelab.php?topic=faq&file=draw-border-inside-div-element-with-css
*/
/*
.grid-box:hover {
    cursor: pointer;
    opacity: 0.8;
}

.grid-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.grid-box figcaption {
    position: absolute;
    bottom: 0;
    right: 0;
    color: orange;
    text-align: right;
    padding: 15px;
    font-style: oblique;
    font-size: smaller;
    z-index: 2;
}
*/