.quotes {
    font-size: 110%;
}

.quotes blockquote {
    font-style: italic;
    margin-top: 3em;
}

.quotes .attrib {
    text-align: right;
}

#bookcover {
    float: right;
    margin: 0 2em 0 2em;
}

#bookcover.sticky {
    position: sticky;
    top: 1em;
}

@media screen and (max-width: 768px) {
    #bookcover {
        float: none;
        text-align: center;
        margin: 0 0 2em;
    }

    #bookcover.sticky {
        position: inherit;
    }
}