ColumnGroup span attribute
Definition and usage
span
Set or return the value of the span attribute of the column group.
<colgroup> span attribute Define the number of columns the <colgroup> element should span.
Tip:To span the number of columns of the <colgroup> element, <colgroup> Different attributes of the columns, please use Column object。
See also:
HTML 参考手册:HTML <colgroup> ਟੈਗ
Instance
Example 1
Set the background color of the first two columns to red:
document.getElementById("myColgroup").span = "2"; document.getElementById("myColgroup").style.backgroundColor = "red";
Example 2
Return the number of columns the <colgroup> element should span:
var x = document.getElementById("myColgroup").span;
Syntax
Return span attribute:
columngroupObject.span
set formMethod attribute:
columngroupObject.span = number
属性值
值 | 描述 |
---|---|
number | 规定 |
技术细节
返回值: | 规定 |
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浏览器支持
Chrome | Edge | Firefox | Safari | Opera |
---|---|---|---|---|
Chrome | Edge | Firefox | Safari | Opera |
支持 | 支持 | 支持 | 支持 | 支持 |
相关页面
HTML 参考手册:HTML <colgroup> span ਪ੍ਰਤੀਰੂਪ