box-align

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句法
注意事项
形式定义
形式句法
范例
规范
浏览器兼容性
另请参阅
相关话题

非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

警告： This is a property of the original CSS Flexible Box Layout Module draft, and has been replaced by a newer standard.

box-align CSS property specifies how an element aligns its contents across its layout in a perpendicular direction. The effect of the property is only visible if there is extra space in the box.

见 flexbox for information about the current standard.

/* Keyword values */
box-align: start;
box-align: center;
box-align: end;
box-align: baseline;
box-align: stretch;
/* Global values */
box-lines: inherit;
box-lines: initial;
box-lines: unset;

The direction of layout depends on the element's orientation: horizontal or vertical.

句法

box-align property is specified as one of the keyword values listed below.

值

start
center
end
baseline
stretch

注意事项

The edge of the box designated the start for alignment purposes depends on the box's orientation:

Horizontal	top
Vertical	left

The edge opposite to the start is designated the end .

If the alignment is set using the element's align attribute, then the style is ignored.

形式定义

初始值	`stretch`
适用于	elements with a CSS `display` value of `box` or `inline-box`
继承	no
计算值	如指定
动画类型	discrete

形式句法

start | center | end | baseline | stretch

范例

Setting box alignment

<!DOCTYPE html>
<html>
<head>
<title>CSS box-align example</title>
<style>
div.example {
  display: box;                   /* As specified */
  display: -moz-box;              /* Mozilla */
  display: -webkit-box;           /* WebKit */
  /* Make this box taller than the children,
     so there is room for the box-pack */
  height: 400px;
  /* Make this box wider than the children
     so there is room for the box-align */
  width: 300px;
  /* Children should be oriented vertically */
  box-orient: vertical;           /* As specified */
  -moz-box-orient: vertical;      /* Mozilla */
  -webkit-box-orient: vertical;   /* WebKit */
  /* Align children to the horizontal center of this box */
  box-align: center;              /* As specified */
  -moz-box-align: center;         /* Mozilla */
  -webkit-box-align: center;      /* WebKit */
  /* Pack children to the bottom of this box */
  box-pack: end;                  /* As specified */
  -moz-box-pack: end;             /* Mozilla */
  -webkit-box-pack: end;          /* WebKit */
}
div.example > p {
  /* Make children narrower than their parent,
     so there is room for the box-align */
  width: 200px;
}
</style>
</head>
<body>
  <div class="example">
    <p>I will be second from the bottom of div.example, centered horizontally.</p>
    <p>I will be on the bottom of div.example, centered horizontally.</p>
  </div>
</body>
</html>

规范

Not part of any standard.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`box-align` 弃用非标	Chrome 完整支持 1 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Edge 完整支持 12 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Firefox 完整支持 1 Prefixed 完整支持 1 Prefixed Prefixed Implemented with the vendor prefix: -moz- 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	IE 不支持 No	Opera 完整支持 15 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Safari 完整支持 3 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit- 不支持 1.1 — 3 Prefixed Prefixed Implemented with the vendor prefix: -khtml-	WebView Android 完整支持 ≤37 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Chrome Android 完整支持 18 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Firefox Android 完整支持 4 Prefixed 完整支持 4 Prefixed Prefixed Implemented with the vendor prefix: -moz- 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Opera Android 完整支持 14 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Safari iOS 完整支持 1 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-	Samsung Internet Android 完整支持 1.0 Prefixed 完整支持 Prefixed Prefixed Implemented with the vendor prefix: -webkit-

图例

完整支持
不支持
非标。预期跨浏览器支持较差。
弃用。不要用于新网站。
要求使用供应商前缀或不同名称。

另请参阅

align-items , box-orient , box-direction , box-pack

元数据

最后修改： Jul 28, 2020

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句法

值