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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/css/background-repeat/index.html | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/css/background-repeat/index.html b/files/zh-cn/web/css/background-repeat/index.html new file mode 100644 index 0000000000..897b4786c7 --- /dev/null +++ b/files/zh-cn/web/css/background-repeat/index.html @@ -0,0 +1,211 @@ +--- +title: background-repeat +slug: Web/CSS/background-repeat +tags: + - CSS_参考 + - background-repeat +translation_of: Web/CSS/background-repeat +--- +<p>{{ CSSRef() }}</p> + +<p> <strong><code>background-repeat</code></strong> <a href="https://developer.mozilla.org/en-US/docs/CSS">CSS</a> 属性定义背景图像的重复方式。背景图像可以沿着水平轴,垂直轴,两个轴重复,或者根本不重复。</p> + +<p>{{EmbedInteractiveExample("pages/css/background-repeat.html")}}</p> + +<div class="hidden"> +<p>The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone <a href="https://github.com/mdn/interactive-examples">https://github.com/mdn/interactive-examples</a> and send us a pull request.</p> +</div> + +<p>默认情况下,重复的图像被剪裁为元素的大小,但它们可以缩放 (使用 <code>round</code>) 或者均匀地分布 (使用 <code>space</code>).</p> + +<h2 id="语法">语法</h2> + +<pre><code>/* 单值语法 */ +background-repeat: repeat-x; +background-repeat: repeat-y; +background-repeat: repeat; +background-repeat: space; +background-repeat: round; +background-repeat: no-repeat; + +/* 双值语法: 水平horizontal | 垂直vertical */ +background-repeat: repeat space; +background-repeat: repeat repeat; +background-repeat: round space; +background-repeat: no-repeat round; + +background-repeat: inherit;</code></pre> + +<h3 id="值">值</h3> + +<dl> + <dt><code><repeat-style></code></dt> + <dd>单值语法是完整的双值语法的简写:</dd> + <dd> + <table> + <tbody> + <tr> + <td><strong>单值</strong></td> + <td><strong>等价于双值</strong></td> + </tr> + <tr> + <td><code>repeat-x</code></td> + <td><code>repeat no-repeat</code></td> + </tr> + <tr> + <td><code>repeat-y</code></td> + <td><code>no-repeat repeat</code></td> + </tr> + <tr> + <td><code>repeat</code></td> + <td><code>repeat repeat</code></td> + </tr> + <tr> + <td><code>space</code></td> + <td><code>space space</code></td> + </tr> + <tr> + <td><code>round</code></td> + <td><code>round round</code></td> + </tr> + <tr> + <td><code>no-repeat</code></td> + <td><code>no-repeat no-repeat</code></td> + </tr> + </tbody> + </table> + 在双值语法中, 第一个值表示水平重复行为, 第二个值表示垂直重复行为. 下面是关于每一个值是怎么工作的具体说明:</dd> + <dd> + <table class="standard-table"> + <tbody> + <tr> + <td><code>repeat</code></td> + <td> + <p>图像会按需重复来覆盖整个背景图片所在的区域. 最后一个图像会被裁剪, 如果它的大小不合适的话.</p> + </td> + </tr> + <tr> + <td><code>space</code></td> + <td> + <p>图像会尽可能得重复, 但是不会裁剪. 第一个和最后一个图像会被固定在元素(element)的相应的边上, 同时空白会均匀地分布在图像之间. {{cssxref("background-position")}}属性会被忽视, 除非只有一个图像能被无裁剪地显示. 只在一种情况下裁剪会发生, 那就是图像太大了以至于没有足够的空间来完整显示一个图像.</p> + </td> + </tr> + <tr> + <td><code>round</code></td> + <td> + <p>随着允许的空间在尺寸上的增长, 被重复的图像将会伸展(没有空隙), 直到有足够的空间来添加一个图像. 当下一个图像被添加后, 所有的当前的图像会被压缩来腾出空间. 例如, 一个图像原始大小是260px, 重复三次之后, 可能会被伸展到300px, 直到另一个图像被加进来. 这样他们就可能被压缩到225px.</p> + + <p>译者注: 关键是浏览器怎么计算什么时候应该添加一个图像进来, 而不是继续伸展.</p> + </td> + </tr> + <tr> + <td><code>no-repeat</code></td> + <td> + <p>图像不会被重复(因为背景图像所在的区域将可能没有完全被覆盖). 那个没有被重复的背景图像的位置是由{{cssxref("background-position")}}属性来决定.</p> + </td> + </tr> + </tbody> + </table> + </dd> +</dl> + +<h3 id="标准语法">标准语法</h3> + +<pre class="syntaxbox">{{csssyntax}} +</pre> + +<h2 id="例子">例子</h2> + +<h3 id="HTML">HTML</h3> + +<pre class="brush: html"><ol> + <li>no-repeat + <div class="one">&nbsp;</div> + </li> + <li>repeat + <div class="two">&nbsp;</div> + </li> + <li>repeat-x + <div class="three">&nbsp;</div> + </li> + <li>repeat-y + <div class="four">&nbsp;</div> + </li> + <li>repeat-x, repeat-y (multiple images) + <div class="five">&nbsp;</div> + </li> +</ol></pre> + +<h3 id="CSS">CSS</h3> + +<pre class="brush: css">/* Shared for all DIVS in example */ +li {margin-bottom: 12px;} +div { + background-image: url(https://mdn.mozillademos.org/files/12005/starsolid.gif); + width: 144px; + height: 84px; +} + +/* 因为 space 和 round 当前没有被广泛支持的, 所以没有添加*/ +.one { + background-repeat: no-repeat; +} +.two { + background-repeat: repeat; +} +.three { + background-repeat: repeat-x; +} +.four { + background-repeat: repeat-y; +} + +/* Multiple images */ +.five { + background-image: url(https://mdn.mozillademos.org/files/12005/starsolid.gif), + url(https://developer.cdn.mozilla.net/media/redesign/img/favicon32.png); + background-repeat: repeat-x, + repeat-y; + height: 144px; +}</pre> + +<h3 id="结果">结果</h3> + +<p>在这个例子中, 每一个列表项都使用了不同的<code>background-repeat语法.</code></p> + +<p>{{EmbedLiveSample("例子", 240, 360)}}</p> + +<h2 id="规范">规范</h2> + +<table> + <thead> + <tr> + <th scope="col">Specification 规范</th> + <th scope="col">Status 状态</th> + <th scope="col">Comment 内容</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName('CSS3 Backgrounds', '#the-background-repeat', 'background-repeat')}}</td> + <td>{{Spec2('CSS3 Backgrounds')}}</td> + <td>Added support for multiple background images, the two-value syntax allowing distinct repetition behavior for the horizontal and vertical directions, the <code>space</code> and <code>round</code> keywords, and for backgrounds on inline-level element by defining precisely the background painting area.</td> + </tr> + <tr> + <td>{{SpecName('CSS2.1', 'colors.html#propdef-background-repeat', 'background-repeat')}}</td> + <td>{{Spec2('CSS2.1')}}</td> + <td>No significant changes</td> + </tr> + <tr> + <td>{{SpecName('CSS1', '#background-repeat', 'background-repeat')}}</td> + <td>{{Spec2('CSS1')}}</td> + <td>Initial definition</td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p> + +<p>{{Compat("css.properties.background-repeat")}}</p> |