.publisher_title {
    border: 3px solid DodgerBlue;
    color: blue;
    text-align:center;
    overflow: hidden;
    top: 0;
    left: 0;
    right: 0;
    height: 80 px;
    width: 100%;
    }

.series_title {
    border: 3px solid DodgerBlue;
    color: blue;
    text-align:center;
    overflow: hidden;
    top: 0;
    left: 0;
    right: 0;
    height: 40 px;
    width: 100%;
    background: #d4f198;
    }

div.item {
    /* To correctly align image, regardless of content height: */
    vertical-align: top;
    display: inline-block;
    /* To horizontally center images and caption */
    text-align: center;
    /* The width of the container also implies margin around the images. */
    width: 17%;
    /* space between images */
    padding: 1%;
}

img {
    width: 100%;
    height: auto;
    background-color: transparent;
}
.caption {
    /* Make the caption a block so it occupies its own line. */
    display: block;
}

img:hover {
    -webkit-filter: brightness(150%);
    filter: brightness(150%);
}