HTML Forms and Input

        HTML Forms are used to select different kinds of user input. Forms A form is an area that can contain form elements. Form elements are elements that allow the user to enter information (like text fields, textarea fields, drop-down menus, radio buttons, checkboxes, etc.) in a form. A form is defined with the

tag.    

  Input The most used form tag is the tag. The type of input is specified with the type attribute. The most commonly used input types are explained below. Text Fields Text fields are used when you want the user to type letters, numbers, etc. in a form.

First name:
Last name:

How it looks in a browser: First name: Last name: Note that the form itself is not visible. Also note that in most browsers, the width of the text field is 20 characters by default.  Radio Buttons Radio Buttons are used when you want the user to select one of a limited number of choices.

Male
Female

How it looks in a browser: Male Female Note that only one option can be chosen. Checkboxes Checkboxes are used when you want the user to select one or more options of a limited number of choices.

I have a bike:
I have a car:
I have an airplane:

How it looks in a browser: I have a bike: I have a car: I have an airplane: The Form's Action Attribute and the Submit Button When the user clicks on the "Submit" button, the content of the form is sent to the server. The form's action attribute defines the name of the file to send the content to. The file defined in the action attribute usually does something with the received input.

Username:

How it looks in a browser: Username: If you type some characters in the text field above, and click the "Submit" button, the browser will send your input to a page called "html_form_submit.asp". The page will show you the received input. Form Tags Tag Description

Defines a form for user input Defines an input field Defines a text-area (a multi-line text input control) <label> Defines a label to a control <fieldset> Defines a fieldset <legend> Defines a caption for a fieldset <select> Defines a selectable list (a drop-down box) <optgroup> Defines an option group <option> Defines an option in the drop-down box <button> Defines a push button <isindex> Deprecated. Use <input> instead