html css 文本分散对齐，两端对齐

.justify{
    text-align-last:justify;
    text-align:justify;
    /* 这行必加，兼容ie浏览器 */
    text-justify:distribute-all-lines; 
}

<table>
    <tbody>
        <tr>
            <th><th>
            <th><th>
            <th><th>
            <th class="justify"><th>
        </tr>
    </tbody>
</table>