/* サイドバー広告エリア */
.side-ad {
    width: calc(100% - 36px);
    background: #aaa;
    font-size: 1.2em;
    text-align: center;
    font-weight: bold;
    margin: 0 auto;
    color: #777;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
    display: none;
}
div.side-item-adbox {
    height: 24vw;
    max-height: 320px;
    margin-bottom: 32px;
}
div.side-item-adbox-sm {
    height: 14vw;
    max-height: 180px;
}