.bookshelf {
    float:left;
}

.bookshelf .row {
    overflow: hidden;
    white-space: nowrap;
    height: 230px;
}
.bookshelf .row:first-child .column {
    background: url(images/first_row_cell_bg.png) no-repeat scroll center center transparent;
}
.bookshelf .row .column {
    display: inline-block;
    position: relative;
    width: 150px;
    height: 230px;
    background: url(images/row_cell_bg.png) no-repeat scroll center center transparent;
}

.bookshelf .row .column span.magazine {
    display: block;
    width: 120px;
    position: absolute;
    bottom: 10px;
    left: 50%;
    margin-left: -60px;
}
.bookshelf .row .column span.magazine img {
    width: 120px;
    position: absolute;
    bottom: 0;
    left: 0;
}