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# outline **版本:CSS3** ### 语法: **outline**:[outline-color] || [outline-style] || [outline-width] || [outline-offset] | inherit 相关属性:[outline-style](#) , [outline-width](#) , [outline-offset](#) , [outline-color](#) ### 取值: *<outline-color>*:指定轮廓边框颜色。参见[outline-color](#)*<outline-style>*:指定轮廓边框轮廓。参见[outline-style](#)*<outline-width>*:指定轮廓边框宽度。参见[outline-width](#)*<outline-offset>*:指定轮廓边框偏移位置的数值。参见[outline-offset](#)inherit:默认。 ### 说明: 1. outline (轮廓)是给元素周围绘制轮廓外边框,通过设置一个数值使边框边缘的外围偏移,可起到突出元素的作用。 1. outline 属性可设置元素周围的轮廓线。 1. 轮廓线不会占据空间,也不一定是矩形。 1. outline 属性是一个简写属性,用于设置元素周围的轮廓线。 ### 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_55e5d38711222.png" alt="IE" />Internet Explorer</th> <th class="type_firefox"><img src="https://box.kancloud.cn/2015-09-02_55e5d387185aa.png" alt="Firefox" />Firefox</th> <th class="type_chrome"><img src="https://box.kancloud.cn/2015-09-02_55e5d3871fd01.png" alt="Chrome" />Chrome</th> <th class="type_opera"><img src="https://box.kancloud.cn/2015-09-02_55e5d387273a0.png" alt="Opera" />Opera</th> <th class="type_safari"><img src="https://box.kancloud.cn/2015-09-02_55e5d38730b13.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 yes"><span>(√)</span>Firefox 3.0.10</td> <td class="support yes"><span>(√)</span>Chrome 2.0.x</td> <td class="support yes"><span>(√)</span>Opera 9.64</td> <td class="support yes"><span>(√)</span>Safari 4</td> </tr><tr><td class="support no"><span>(×)</span>IE7</td> <td class="support yes"><span>(√)</span>Firefox 3.5</td> <td></td> <td></td> <td></td> </tr><tr><td class="support yes"><span>(√)</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: ![](https://box.kancloud.cn/2015-09-02_55e5d38739f89.png) <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta http-equiv="Content-Language" content="utf-8" /><meta name="robots" content="all" /><meta name="author" content="Tencent-ISRD" /><meta name="Copyright" content="Tencent" /><title>outline</title></head><body><div style="width: 160px;padding: 10px;height: 30px;border: 2px solid black;outline-color:#897048;outline-style:groove;outline-width:2px;outline-offset: 5px;">这绘制的是一个轮廓边框</div></body></html> 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”")