body {
    margin: 0;
    background-image: url(images/fox.jpg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    font-family: "EB Garamond", serif;
}

body.one {
    background-image: url(images/fox.jpg);
}

body.two {
    background-image: url(images/margin_animals.jpg);
}

body.three {
    background-image: url(images/marginalia.jpg);
}

body.four {
    background-image: url(images/rabbit_music.png);
}

body.five {
    background-image: url(images/rabbit_revenge.jpg);
}

header nav, footer nav {
    width: 100%;
    position: fixed;
    background-color: gray;
    height: 8em;
}

header nav {
    top: 0;
}

footer nav {
    bottom: 0;
}

.menu {
    padding: 1em 0;
    height: 2em;
    margin: auto;
    width: 100%;
    display: flex;
    justify-content: space-evenly;
    max-width: 900px;
}

.quest-body {
    display: flex;
    width: 100%;
    max-width: 900px;
    margin: 12em auto;
    text-align: center;
    justify-content: center;
    flex-direction: column;
    min-height: calc(100vh - 24em);
    background-color: rgb(255, 255, 255, 0.8);  
}

.noquest {
    font-size: 3em;
}

.tab.hidden {
    display: none;
}

.menu button {
    font-size: 2.5em;
    line-height: 2.5em;
    font-family: "EB Garamond", serif;
    width: 10em;
    height: 2.5em;
    cursor: pointer;
}

.menu button.active {
    background-color:beige;
}

header {
    position: fixed;
    width: 100%;
    z-index: 100;
}

main {
    width: 100%;
    max-width: 900px;
}

.tab details {
    text-align: left;
    background-color: rgb(255, 255, 255, 1);
    padding: 1.5em;
    margin: 1.5em;
}

.tab details summary {
    font-size: 3em;
    cursor: pointer;
}

.tab details p, .tab details li {
    font-size: 1.5em;
}

#acknowledgements h2 {
    font-size: 3.5em;
}