What is the correct HTML element for defining a form? Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, …

Information about Form W-3C, Transmittal of Corrected Wage and Tax Statements, including recent updates, related forms, and instructions on how to file. Use Form W-3C to transmit …

More "Try it Yourself" examples below. The <form> tag is used to create an HTML form for user input. The <form> element can contain one or more of the following form elements: The …

在 W3School，你可以找到你所需要的所有的网站建设教程。 从基础的 HTML 到 CSS，乃至进阶的 XML、SQL、JS、PHP 和 ASP.NET。 从左侧的菜单选择你需要的教程！ 我们的参考手册 …

2024年5月13日 · Provide labels to identify all form controls, including text fields, checkboxes, radio buttons, and drop-down menus. In most cases, this is done by using the <label> …

2022年5月23日 · <form> 标签用于创建供用户输入的 HTML 表单。 可以用 :valid 和:invalid CSS 伪类 来给一个元素指定样式。 <form> 元素包含一个或多个如下的表单元素： HTML5 新增了两 …

Use fixed width inputs for content that has a specific, known length. Postcode inputs should be postcode-sized, telephone number inputs should be telephone number-sized. Make form fields …

2025年3月18日 · Controls the annotations and what kinds of links the form creates. Annotations include external, nofollow, opener, noopener, and noreferrer. Link types include help, prev, …

Different browsers may use different default types for the button element. The <fieldset> element is used to group related data in a form. <fieldset> element. This is how the HTML code above …

W3Schools is Powered by W3.CSS. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, …