--- title: outline-style slug: Web/CSS/outline-style tags: - outline-style translation_of: Web/CSS/outline-style --- <div>{{CSSRef}}</div> <h2 id="概要">概要</h2> <p><strong><code>outline-style</code></strong> CSS 属性被用于设置一个元素轮廓的样式。</p> <p>元素轮廓是绘制于元素周围的一条线,位于{{cssxref("border")}}的外围,使元素突出</p> <p>大多时候使用{{cssxref("outline")}}而不是<code> outline-style</code>,<code> outline-width <font face="Open Sans, arial, x-locale-body, sans-serif"><span style="background-color: #ffffff;">和</span></font></code><code> outline-color</code>会更方便.</p> <p>{{cssinfo}}</p> <h2 id="语法">语法</h2> <pre class="brush:css">/* 关键字 值 */ outline-style: auto; outline-style: none; outline-style: dotted; outline-style: dashed; outline-style: solid; outline-style: double; outline-style: groove; outline-style: ridge; outline-style: inset; outline-style: outset; /* 全局 值*/ outline-style: inherit; outline-style: initial; outline-style: unset; </pre> <h2 id="取值">取值</h2> <p><code><br-style> </code>可为以下这些值:</p> <dl> <dt>none</dt> <br> <dd>无轮廓 ({{Cssxref("outline-width")}} 为<code> 0</code>).</dd> <dt>dotted</dt> <br> <dd style="outline: 10px dotted red;">轮廓为一系列点.</dd> <dt>dashed</dt> <br> <dd style="outline: 10px dashed red;">轮廓为一系列短线.</dd> <dt>solid</dt> <br> <dd style="outline: 10px solid red;">轮廓为实线.</dd> <dt>double</dt> <br> <dd style="outline: 10px double red;">轮廓为两根有空隙的线. {{Cssxref("outline-width")}} 为线与空间的总和.</dd> <dt>groove</dt> <br> <dd style="outline: 10px groove red;">轮廓呈凹下状.</dd> <dt>ridge</dt> <br> <dd style="outline: 10px ridge red;">与<code> groove相反</code>: 轮廓呈凸起状.</dd> <dt>inset</dt> <br> <dd style="outline: 10px inset red;">轮廓呈嵌入状.</dd> <dt>outset</dt> <br> <dd style="outline: 10px outset red;">与<code> inset相反</code>: 轮廓呈突出状.</dd> </dl> <h3 id="正式语法">正式语法</h3> {{csssyntax}} <h2 id="Example_1_-_dotted_and_dashed" name="Example_1_-_dotted_and_dashed">示例 1 <code>dotted</code> 和 <code>dashed</code></h2> <h3 id="HTML">HTML</h3> <pre class="brush: html"><div> <div class="dotted"> <p class="dashed">Outline Demo</p> </div> </div> </pre> <h3 id="CSS">CSS</h3> <pre class="brush: css">.dotted { outline-style: dotted; /* 于 "outline: dotted"等价 */ } .dashed { outline-style: dashed; } /* 让效果更清楚 */ * { outline-width: 10px; padding: 15px; } </pre> <p>{{ EmbedLiveSample('Example_1_-_dotted_and_dashed') }}</p> <h2 id="Example_2_-_solid_and_double" name="Example_2_-_solid_and_double">示例 2 - <code>solid</code> 和 <code>double</code></h2> <h3 id="HTML_2">HTML</h3> <pre class="brush: html"><div> <div class="solid"> <p class="double">Outline Demo</p> </div> </div> </pre> <h3 id="CSS_2">CSS</h3> <pre class="brush: css">.solid { outline-style: solid; } .double { outline-style: double; } /* 让效果更清楚 */ * { outline-width: 10px; padding: 15px; } </pre> <p>{{ EmbedLiveSample('Example_2_-_solid_and_double') }}</p> <h2 id="Example_3_-_groove_and_ridge" name="Example_3_-_groove_and_ridge">示例 3 - <code>groove</code> 和 <code>ridge</code></h2> <h3 id="HTML_3">HTML</h3> <pre class="brush: html"><div> <div class="groove"> <p class="ridge">Outline Demo</p> </div> </div></pre> <h3 id="CSS_3">CSS</h3> <pre class="brush: css">.groove { outline-style: groove; } .ridge { outline-style: ridge; } /* 让效果更清楚 */ * { outline-width: 10px; padding: 15px; }</pre> <p>{{ EmbedLiveSample('Example_3_-_groove_and_ridge') }}</p> <h2 id="Example_4_-_inset_and_outset" name="Example_4_-_inset_and_outset">示例 4 - <code>inset</code> 和 <code>outset</code></h2> <h3 id="HTML_4">HTML</h3> <pre class="brush: html"><div> <div class="inset"> <p class="outset">Outline Demo</p> </div> </div></pre> <h3 id="CSS_4">CSS</h3> <pre class="brush: css">.inset { outline-style: inset; } .outset { outline-style: outset; } /* 让效果更清楚 */ * { outline-width: 10px; padding: 15px; }</pre> <p>{{ EmbedLiveSample('Example_4_-_inset_and_outset') }}</p> <h2 id="规范">规范</h2> <table class="standard-table"> <thead> <tr> <th scope="col">Specification</th> <th scope="col">Status</th> <th scope="col">Comment</th> </tr> </thead> <tbody> <tr> <td>{{SpecName('CSS3 Basic UI', '#outline-style', 'outline-style')}}</td> <td>{{Spec2('CSS3 Basic UI')}}</td> <td>Added <code>auto</code> value</td> </tr> <tr> <td>{{SpecName('CSS2.1', 'ui.html#propdef-outline-style', 'outline-style')}}</td> <td>{{Spec2('CSS2.1')}}</td> <td>Initial definition</td> </tr> </tbody> </table> <h2 id="浏览器兼容性">浏览器兼容性</h2> <p>{{Compat("css.properties.outline-style")}}</p> <div>{{CompatibilityTable}}</div> <div id="compat-desktop"> <table class="compat-table"> <tbody> <tr> <th>Feature</th> <th>Chrome</th> <th>Edge</th> <th>Firefox (Gecko)</th> <th>Internet Explorer</th> <th>Opera</th> <th>Safari (WebKit)</th> </tr> <tr> <td>Basic support</td> <td>1.0</td> <td>{{CompatVersionUnknown}}</td> <td>1.5 (1.8)<sup>[1]</sup></td> <td>8.0</td> <td>7.0</td> <td>1.2 (125)</td> </tr> <tr> <td><code>auto</code></td> <td>{{CompatUnknown}}</td> <td>{{CompatNo}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> </tr> </tbody> </table> </div> <div id="compat-mobile"> <table class="compat-table"> <tbody> <tr> <th>Feature</th> <th>Android</th> <th>Edge</th> <th>Firefox Mobile (Gecko)</th> <th>IE Phone</th> <th>Opera Mobile</th> <th>Safari Mobile</th> </tr> <tr> <td>Basic support</td> <td>2.1</td> <td>{{CompatVersionUnknown}}</td> <td>{{CompatGeckoMobile("46")}}</td> <td>10</td> <td>12</td> <td>3.2</td> </tr> <tr> <td><code>auto</code></td> <td>{{CompatUnknown}}</td> <td>{{CompatNo}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> <td>{{CompatUnknown}}</td> </tr> </tbody> </table> </div> <p>[1] <a href="/zh-CN/docs/Gecko">Gecko</a> 1.8及以前 (<a href="/zh-CN/docs/Firefox_1.5_for_developers">Firefox 1.5</a>) 该效果可用<a href="/zh-CN/docs/CSS/CSS_Reference/Mozilla_Extensions">Mozilla CSS Extension</a> 实现{{Cssxref("-moz-outline-style")}}.</p>