/* コピーボタン */
        .gnews-code-copy {
            display: inline-block;
            margin: 4px 0 14px;
            padding: 5px 12px;
            border: 1px solid #005CAC;
            border-radius: 4px;
            background: #005CAC;
            color: #fff;
            font-size: 12px;
            line-height: 1.4;
            cursor: pointer;
            -webkit-user-select: none;
            user-select: none;
        }
        .gnews-code-copy:hover {
            opacity: .85;
        }
        .gnews-code-copy.is-done {
            background: #2e7d32;
            border-color: #2e7d32;
        }