@charset "utf-8";
.museum-banner {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    list-style-type: none;
}

.museum-banner li {
    width: calc((100% / 2) - 10px);
    margin-bottom: 10px;
}

.museum-banner li:nth-child(2n+1) {
    margin-right: 10px;
}

.museum-banner li img {
    display: block;
    width: 100%;
    height: auto;
}

.museum-banner li:hover img {
    opacity: 0.6;
    transition-duration: 0.1s;
}

@media screen and (max-width: 639px) {
    .museum-banner li {
        width: 100%;
        margin-bottom: 5px;
    }
    .museum-banner li:nth-child(2n+1) {
        margin-right: 0px;
    }
}

@media screen and (max-width: 639px) {
    .museum-news-banner.small .img {
        -webkit-justify-content: left;
        justify-content: left;
    }
    .museum-news-banner.small .img .block {
        width: calc(30px + ((100% - 110px) / 12 * 8));
    }
}