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diff --git a/files/zh-cn/web/css/margin-bottom/index.html b/files/zh-cn/web/css/margin-bottom/index.html new file mode 100644 index 0000000000..5705d9d2dc --- /dev/null +++ b/files/zh-cn/web/css/margin-bottom/index.html @@ -0,0 +1,187 @@ +--- +title: margin-bottom +slug: Web/CSS/margin-bottom +tags: + - CSS + - CSS属性 + - 参考 +translation_of: Web/CSS/margin-bottom +--- +<div>{{CSSRef}}</div> + +<h2 id="Summary" name="Summary">Summary</h2> + +<p><img alt="The effect of the CSS margin-bottom property on the element box" src="https://mdn.mozillademos.org/files/12980/margin-bottom%20explained.svg" style="border: 1px solid; float: left; height: 252px; margin-bottom: 1em; margin-right: 1em; padding-right: 0.5em; width: 368px;"></p> + +<p><span class="seoSummary">CSS的<code> margin-bottom 属性用于设置元素的底部外边距，允许设置负数值。一个正数值将让它相对于正常流与邻近块更远，而负数值将使得更近。</code></span></p> + +<p><span class="seoSummary">该属性对于<em>不可替代(non-replaced 元素在规范中有概念，请自行搜索)</em>的行级元素没有效果，比如： {{HTMLElement("tt")}} 或者 {{HTMLElement("span")}}.</span></p> + +<p>{{cssinfo}}</p> + +<h2 id="Syntax" name="Syntax">语法</h2> + +<pre class="brush:css">/* <length> values */ +margin-bottom: 10px; /* 一个绝对的长度值 */ +margin-bottom: 1em; /* A length relative to the text size */ +margin-bottom: 5%; /* A margin relative to the nearest block container's width */ + +/* Keyword values */ +margin-bottom: auto; + +/* Global values */ +margin-bottom: inherit; +margin-bottom: initial; +margin-bottom: unset; +</pre> + +<h3 id="Values" name="Values">值</h3> + +<dl> + <dt><code><length></code></dt> + <dd>定义了一个确定的宽度值，参见 {{cssxref("<length>")}} 以了解更多可能的值。</dd> + <dt><code><percentage></code></dt> + <dd>{{cssxref("<percentage>")}} 始终与包含该元素的<strong>容器宽度</strong>有关。</dd> + <dt><code>auto</code></dt> + <dd>由浏览器自己选择一个合适的值。参见 {{cssxref("margin")}}。</dd> +</dl> + +<h3 id="正式语法">正式语法</h3> + +<pre class="syntaxbox">{{csssyntax}}</pre> + +<h2 id="Example" name="Example">样例</h2> + +<h3 id="HTML">HTML</h3> + +<pre class="brush: html"><div class="container"> +<div class="box0">Box 0</div> +<div class="box1">Box 1</div> +<div class="box2">Box one's negative margin pulls me up</div> +</div></pre> + +<h3 id="CSS">CSS</h3> + +<p>用于设置<code> div </code>的<code> margin-bottom </code>和<code> height </code>的 CSS代码</p> + +<pre class="brush: css">.box0 { + margin-bottom:1em; + height:3em; +} +.box1 { + margin-bottom:-1.5em; + height:4em; +} +.box2 { + border:1px dashed black; + border-width:1px 0; + margin-bottom:2em; +} + +</pre> + +<p>为了使<code> margin </code>产生的影响更明显，添加了一些<code> container </code>和<code> div </code>的样式定义</p> + +<pre class="brush: css">.container { + background-color:orange; + width:320px; + border:1px solid black; +} +div { + width:320px; + background-color:gold; +}</pre> + +<p>{{ EmbedLiveSample('Example',350,200) }}</p> + +<h2 id="规范">规范</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">规范</th> + <th scope="col">状态</th> + <th scope="col">注释</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName('CSS3 Box', '#margin-bottom', 'margin-bottom')}}</td> + <td>{{Spec2('CSS3 Box')}}</td> + <td>无明显变化</td> + </tr> + <tr> + <td>{{SpecName('CSS3 Transitions', '#animatable-css', 'margin-bottom')}}</td> + <td>{{Spec2('CSS3 Transitions')}}</td> + <td>将 <code>margin-bottom</code> 定义为可动画化</td> + </tr> + <tr> + <td>{{SpecName('CSS2.1', 'box.html#margin-properties', 'margin-bottom')}}</td> + <td>{{Spec2('CSS2.1')}}</td> + <td>移除了对内联元素的影响</td> + </tr> + <tr> + <td>{{SpecName('CSS1', '#margin-bottom', 'margin-bottom')}}</td> + <td>{{Spec2('CSS1')}}</td> + <td>初始定义</td> + </tr> + </tbody> +</table> + +<h2 id="Browser_Compatibility" name="Browser_Compatibility">浏览器兼容性</h2> + +<p>{{CompatibilityTable}}</p> + +<div id="compat-desktop"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Chrome</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>{{CompatGeckoDesktop("1")}}</td> + <td>3.0</td> + <td>3.5</td> + <td>1.0 (85)</td> + </tr> + <tr> + <td><code>auto</code> value</td> + <td>1.0</td> + <td>{{CompatGeckoDesktop("1")}}</td> + <td>6.0 (strict mode)</td> + <td>3.5</td> + <td>1.0 (85)</td> + </tr> + </tbody> +</table> +</div> + +<div id="compat-mobile"> +<table class="compat-table"> + <tbody> + <tr> + <th>Feature</th> + <th>Android</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>1.0</td> + <td>{{CompatGeckoMobile("1")}}</td> + <td>6.0</td> + <td>6.0</td> + <td>1.0</td> + </tr> + </tbody> +</table> +</div> |