CSS3 column-gap 属性

语法：

column-gap：<length> | normal

默认值：normal

取值：

<length>：: 用长度值来定义列与列之间的间隙。不允许负值
normal：: 与font-size大小相同。假设该对象的font-size为16px，则normal值为16px，类推。

说明：

设置或检索对象的列与列之间的间隙

对应的脚本特性为columnGap。

兼容性：

浅绿 = 支持
红色 = 不支持
墨绿 = 部分支持
橙色 = 实验性质

支持版本\类型	IE	Firefox	Safari	Chrome	Opera
版本	6.0-9.0	4.0-9.0	5.1	13.0-16.0	11.50
版本	10.0	4.0-9.0	5.1	13.0-16.0	11.50

写法：

内核类型	写法
Webkit(Chrome/Safari)	-webkit-column-gap
Gecko(Firefox)	-moz-column-gap
Presto(Opera)	column-gap
Trident(IE)	column-gap
W3C	column-gap

示例：

<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="utf-8" />
<title>CSS column-gap_CSS参考手册_web前端开发参考手册系列</title>
<style>
body{font:14px/1.5 georgia,serif,sans-serif;}
p{margin:0;padding:5px 10px;background:#eee;}
h1{margin:10px 0;font-size:16px;}
.test{
	border:10px solid #000;
	-moz-column-count:3;
	-moz-column-gap:normal;
	-webkit-column-count:3;
	-webkit-column-gap:normal;
	column-count:3;
	column-gap:normal;
}
.test2{
	border:10px solid #000;
	-moz-column-count:3;
	-moz-column-gap:40px;
	-webkit-column-count:3;
	-webkit-column-gap:40px;
	column-count:3;
	column-gap:40px;
}
</style>
</head>
<body>
<h1>font-size为14px时，列间隙column-gap:normal的计算值也为14px</h1>
<div class="test">
	<p>This module describes multi-column layout in CSS. By using functionality described in this document, style sheets can declare that the content of an element is to be laid out in multiple columns. </p>
	<p>On the Web, tables have also been used to describe multi-column layouts. The main benefit of using CSS-based columns is flexibility; content can flow from one column to another, and the number of columns can vary depending on the size of the viewport. Removing presentation table markup from documents allows them to more easily be presented on various output devices including speech synthesizers and small mobile devices.</p>
</div>
<h1>固定列间隙为40px:</h1>
<div class="test2">
	<p>This module describes multi-column layout in CSS. By using functionality described in this document, style sheets can declare that the content of an element is to be laid out in multiple columns. </p>
	<p>On the Web, tables have also been used to describe multi-column layouts. The main benefit of using CSS-based columns is flexibility; content can flow from one column to another, and the number of columns can vary depending on the size of the viewport. Removing presentation table markup from documents allows them to more easily be presented on various output devices including speech synthesizers and small mobile devices.</p>
</div>
</body>
</html>