Definition and Usage The form attribute specifies the form the text area belongs to. The value of this attribute must be equal to the id attribute of a <form> element in the same document.

Tip: Always use the <label> tag to define labels for <input type="text">, <input type="checkbox">, <input type="radio">, <input type="file">, and <input type="password">.

If you want the ability to close the alert message, add a <span> element with an onclick attribute that says "when you click on me, hide my parent element" - which is the container <div> (class="alert"). Tip: Use the HTML entity " &times; " to create the letter "x".

JavaScript has three kind of popup boxes: Alert box, Confirm box, and Prompt box.

The <input type="url"> is used for input fields that should contain a URL address. Depending on browser support, the url field can be automatically validated when submitted.

Definition and Usage The <textarea> tag defines a multi-line text input control. The <textarea> element is often used in a form, to collect user inputs like comments or reviews. A text area can hold an unlimited number of characters, and the text renders in a …

Definition and Usage The <dialog> tag defines a dialog box or subwindow. The <dialog> element makes it easy to create popup dialogs and modals on a web page.

The <form> element is a container for different types of input elements, such as: text fields, checkboxes, radio buttons, submit buttons, etc. All the different form elements are covered in …

Description The alert() method displays an alert box with a message and an OK button. The alert() method is used when you want information to come through to the user.

Definition and Usage The <input type="text"> defines a single-line text field. The default width of the text field is 20 characters. Tip: Always add the <label> tag for best accessibility practices!