/* The hovered items' parent */
ul.comics { position: relative; }

/* The hovered items */
ul.comics li {
    position: relative;
    z-index: 100;
}

/* The hover element, dynamically created */
div.ahover {
    position: absolute;
    z-index: 99;
    background: #0F0F0F;
    -webkit-border-radius: 7px;
    -moz-border-radius: 7px;
}