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cols属性指定文本区域的可见宽度。textarea的大小也可以通过CSS的height和width属性设置。
同时指定textarea的高度和宽度：
<textarea rows="4cols="5" 0">3At w </textarea>Test and see ‹/›
IEFirefoxOperaChromeSafari
All major browsers support the cols attribute.
The cols attribute specifies the visible width of the text area.
Note:The size of the textarea can also be set with the CSS height and width properties.
None.
<textarea cols="number">
| Value | Description |
|---|---|
| number | Specify the width of the text area (in average character width units). The default value is20. |