bootstrap table自动换行

怎样让HTML 表格中内容自动换行？？

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<div class="span12">    <table class="table table-condensed" style="word-break:break-all; word-wrap:break-all;">    <thead>        <tr>        <tr>            <th class="span1">事件id</th>            <th class="span1">ip地址</th>            <th class="span5">内容</th>            <th class="span1">次数</th>            <th class="span2">time</th>         </tr>        </tr></div>