.page-content {
    display:none;
}
.page-content.visible {
    display: block;
}

.comic {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 0px;
    margin: 0px;
}

.comic li {
    list-style-type: none;
    padding: 0px;
    margin: 0px;
}

.comic img {
    margin: 1em;
    width: 300px;
}