div.book {
    float: none;
    min-height: 320px;
    display: grid;
    grid-template-areas: 'image details';
    grid-template-columns: 230px auto;
    grid-gap: 15px;
}
div.book .item-details *:last-child {
    margin-bottom: 0px;
}

.item-details { grid-area: details; }
.item-image {
    grid-area: image;
    height: 300px;
}
.item-image img {
    max-width: 230px;
    max-height: 300px;
}
.zoomable:hover::after {
    display: block;
    width: 230px;
    height: 50px;
    float: left;
    margin-top: -175px;
    content: '';
    background: url('/res/img/zoom-in.png') center center no-repeat;
}
.zoomable:hover img {
    cursor: pointer;
    opacity: .7;
}
h1 {
    font-size: 1.6em;
    margin-top: 0px;
}
h1.book-title small {
    font-size: .6em;
    display: block;
}
.item-details > div {
    margin: 0 0 10px 0;
}
.item-details > div > * {
    display: block;
}

.item-details > div > label {
    font-style: italic;
    color: var(--fg-color);
    opacity: .8;
}
.item-details input {
    width: 50px;
}

body > .big-picture {
    background-color:#00000090;
    background-position: center center;
    background-repeat:no-repeat;
    background-size: auto 80vh;
    filter: drop-shadow(5px 5px 20px #000);
    position:fixed;
    top:0;
    left:0;
    z-index:9999;
    width:100vw;
    height:100vh;
    cursor:url(/res/zoom-out.png),-moz-zoom-out,-webkit-zoom-out,zoom-out,auto;
    padding:0;
    margin:0;
}
body > .big-picture::after {
    display: block;
    position: fixed;
    width: 98vw;
    padding:0;
    margin:0;
    font-size: 14px;
    bottom: calc(10vh - 20px);
    left: 0;
    z-index:10000;
    text-align:center;
    content: 'Hier klicken, um zu schließen!';
    color: #fff;
    cursor: pointer;
}