用bootstrap可以这样：

<div class="row">
    <div class="col-sm-6">
        <div class="table-response">
            <table class="table">
                <tbody>
                    <tr>
                        <td>a</td>
                        <td>b </td>
                    </tr>
                    <tr>
                        <td>a</td>
                        <td>b </td>
                    </tr>
                </tbody>
            </table>
        </div>
    </div>
    <div class="col-sm-6">
        <div class="table-response">
            <table class="table">
                <tbody>
                    <tr>
                        <td>a</td>
                        <td>b </td>
                    </tr>
                    <tr>
                        <td>a</td>
                        <td>b </td>
                    </tr>
                </tbody>
            </table>
        </div>
    </div>
</div>
--
FROM 23.239.5.*