.article {
    .section {
        font-size: 16px;
        line-height: 1.8em;
        color: #666;

        & + .section {
            margin-top: 24px;
        }
    }

    .title {
        font-size: 18px;
        line-height: 2em;
        color: #333;
    }

    .subtitle {
        font-size: 14px;
        line-height: 1.6em;
        color: #999;
    }

    .flex {
        display: flex;
        flex-wrap: wrap;

        .flex-item {
            margin-top: 16px;
            margin-right: 8px;
            flex: none;
            width: 100px;
            text-align: center;
        }
    }
}