HTML required Attribute

It is a Boolean attribute that is used to specify that the input element must be filled out before submitting the Form.

Elements: These attributes can be associated with three elements which are listed below:  

• <input>
• <select>
• <textarea>

Syntax:

<input required>

Example-1: In this example, we demonstrate the use of the required attribute in a form. The attribute ensures that the "Username" field must be filled out before submitting the form.

Output:

Syntax:

<select required>

Example-2: In this example we demonstrates the required attribute in a <select> field. It ensures users select an option other than "None" before submitting the form, styled with green italic headings.

Output:

Syntax:

<textarea required>

Example-3: In this example we demonstrates the required attribute in a <textarea> field, ensuring users provide input before form submission. The page includes green, italic headings and a centered layout.

Output:

Supported Browsers: The browser supported by required attribute are listed below: 

• Google Chrome
• Edge
• Firefox
• Opera
• Safari