body {
    background-color: #FFBD6D;
}

.header {
    font-size: 34px;
    font-weight: bold;
}

.book {
    padding: 25px 0 0 0;
    margin: auto;
    width: 100%;
    height: auto;
    max-height: auto;
}

.parent {
    position: relative;
}

.bookreviewed {
    position: absolute;
    z-index: 10;
    top: 20px;
    right: 20px;
    height: 10%;
    width: 50%;
    font-size: 2vmin;
    background: #4CAF50;
    text-align: center;
    vertical-align: middle;
    color: #ffffff;
    font-weight: bold;
    -webkit-box-shadow: 2px 2px 2px 0px rgba(0,0,0,0.75);
    -moz-box-shadow: 2px 2px 2px 0px rgba(0,0,0,0.75);
    box-shadow: 2px 2px 2px 0px rgba(0,0,0,0.75);
}

.shelf {
    border-bottom: 30px solid #a5a5a5;
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    top: -15px;
    z-index: -10;
}

.shelf:after {
    content: '';
    background: #686868;
    height: 20px;
    width: calc(100% + 40px); /* for IE9+ */
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    z-index: 1;
    margin: 0 -20px;
}