.l-library-tab .view-content {
    display: -ms-grid;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(25%, 1fr));
    -ms-grid-rows: auto;
    grid-template-rows: auto;
}

.c-library-btn.is-active {
    background: #001489;
}

.l-library-tab .c-library-btn {
    border-right: 1px solid #999;
    border-bottom: 1px solid #999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.c-library-btn {
    background: #aaa;
    color: #fff;
    display: block;
    font-size: 1.125rem;
    font-weight: bold;
    padding: 1em;
}

.l-ir-articles__item {
    display: flex;
    padding: 20px 0;
    border-bottom: 1px solid #ddd;
    align-items: flex-start;
}

.l-library-backnumber .view-content{
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 20px 1fr 20px 1fr 20px 1fr 20px 1fr;
    grid-template-columns: repeat(5, 1fr);
    -ms-grid-rows: auto;
    grid-template-rows: auto;
    -moz-column-gap: 20px;
    column-gap: 20px;
    row-gap: 20px;
}