# column-break-before **版本：CSS3** 继承性：无 ### 语法： **column-break-before**：auto | *always* | *avoid* **相关属性**： [column-break-after](# "column-break-after") ### 取值： *auto*： 指定颜色。  ### 说明： 1. 定义元素之前是否断行 | 引擎类型 | Gecko | Webkit | Presto | |-----|-----|-----|-----| | column-break-before |   | -webkit-column-break-before |   | |   |   |   |   | ### 兼容性： <table><thead><tr><th class="type">类型</th> <th class="type_ie"><img src="https://box.kancloud.cn/2015-09-02_55e5d38cc933e.png" alt="IE" />Internet Explorer</th> <th class="type_firefox"><img src="https://box.kancloud.cn/2015-09-02_55e5d38cd2124.png" alt="Firefox" />Firefox</th> <th class="type_chrome"><img src="https://box.kancloud.cn/2015-09-02_55e5d38ce72d6.png" alt="Chrome" />Chrome</th> <th class="type_opera"><img src="https://box.kancloud.cn/2015-09-02_55e5d38d014dc.png" alt="Opera" />Opera</th> <th class="type_safari"><img src="https://box.kancloud.cn/2015-09-02_55e5d38d0aebd.png" alt="Safari" />Safari</th> </tr></thead><tbody><tr><td rowspan="4" class="version">版本</td> <td class="support no"><span>(×)</span>IE6</td> <td class="support no"><span>(×)</span>Firefox 2.0</td> <td class="support yes"><span>(√)</span>Chrome 1.0.x</td> <td class="support no"><span>(×)</span>Opera 9.63</td> <td class="support yes"><span>(√)</span>Safari 3.1</td> </tr><tr><td class="support no"><span>(×)</span>IE7</td> <td class="support no"><span>(×)</span>Firefox 3.0</td> <td class="support yes"><span>(√)</span>Chrome 2.0.x</td> <td></td> <td class="support yes"><span>(√)</span>Safari 4</td> </tr><tr><td class="support no"><span>(x)</span>IE8</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr><tr><td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr></tbody></table> ### 示例： 复制代码 Copyright © 2009 [Tencent ISD webteam](http://webteam.tencent.com/). All Rights Reserved ### 快速跳转 - [语法](# "跳转到“语法”") - [取值](# "跳转到“取值”") - [说明](# "跳转到“说明”") - [兼容性](# "跳转到“兼容性”") - [示例](# "跳转到“示例”")