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HTML <input> size 属性

❮ HTML <input> 标签

示例

一个 HTML 表单,包含两个输入字段,宽度分别为 50 和 4 个字符

<form action="/action_page.php">
  <label for="fname">姓氏:</label>
  <input type="text" id="fname" name="fname" size="50"><br><br>
  <label for="pin">PIN:</label>
  <input type="text" id="pin" name="pin" maxlength="4" size="4"><br><br>
  <input type="submit" value="提交">
</form>
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定义和用法

The size 属性指定 <input> 元素的可见宽度(以字符为单位)。

注意:size 属性适用于以下输入类型:text、search、tel、url、email 和 password。

提示: 要指定 <input> 元素中允许的最大字符数,请使用 maxlength 属性。


浏览器支持

表格中的数字指定完全支持该属性的第一个浏览器版本。

属性
size

语法

<input size="数字">

属性值

描述
数字 指定 <input> 元素的宽度(以字符为单位)。默认值为 20

❮ HTML <input> 标签
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