Html form elements attributes

HTML Form Elements

This chapter describes all the different HTML form elements.

The HTML Elements

The HTML element can contain one or more of the following form elements:

The Element

One of the most used form element is the element.

The element can be displayed in several ways, depending on the type attribute.

Example

All the different values of the type attribute are covered in the next chapter: HTML Input Types.

The Element

The element defines a label for several form elements.

The element is useful for screen-reader users, because the screen-reader will read out loud the label when the user focus on the input element.

The element also help users who have difficulty clicking on very small regions (such as radio buttons or checkboxes) — because when the user clicks the text within the element, it toggles the radio button/checkbox.

The for attribute of the tag should be equal to the id attribute of the element to bind them together.

The Element

The element defines a drop-down list:

Example

The elements defines an option that can be selected.

By default, the first item in the drop-down list is selected.

To define a pre-selected option, add the selected attribute to the option:

Example

Visible Values:

Use the size attribute to specify the number of visible values:

Example

Allow Multiple Selections:

Use the multiple attribute to allow the user to select more than one value:

Example

The Element

The element defines a multi-line input field (a text area):

Example

The rows attribute specifies the visible number of lines in a text area.

The cols attribute specifies the visible width of a text area.

This is how the HTML code above will be displayed in a browser:

You can also define the size of the text area by using CSS:

Example

The Element

The element defines a clickable button:

Example

This is how the HTML code above will be displayed in a browser:

Note: Always specify the type attribute for the button element. Different browsers may use different default types for the button element.

The and Elements

The element is used to group related data in a form.

The element defines a caption for the element.

Example

This is how the HTML code above will be displayed in a browser:

The Element

The element specifies a list of pre-defined options for an element.

Users will see a drop-down list of the pre-defined options as they input data.

The list attribute of the element, must refer to the id attribute of the element.

Example

The Element

The element represents the result of a calculation (like one performed by a script).

Example

Perform a calculation and show the result in an element:

HTML Exercises

HTML Form Elements

Tag	Description
	Defines an HTML form for user input
	Defines an input control
	Defines a multiline input control (text area)
	Defines a label for an element
	Groups related elements in a form
	Defines a caption for a element
	Defines a drop-down list
	Defines a group of related options in a drop-down list
	Defines an option in a drop-down list
	Defines a clickable button
	Specifies a list of pre-defined options for input controls
	Defines the result of a calculation

For a complete list of all available HTML tags, visit our HTML Tag Reference.

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HTML Form Attributes

This chapter describes the different attributes for the HTML element.

The Action Attribute

The action attribute defines the action to be performed when the form is submitted.

Usually, the form data is sent to a file on the server when the user clicks on the submit button.

In the example below, the form data is sent to a file called «action_page.php». This file contains a server-side script that handles the form data:

Example

On submit, send form data to «action_page.php»:

Tip: If the action attribute is omitted, the action is set to the current page.

The Target Attribute

The target attribute specifies where to display the response that is received after submitting the form.

The target attribute can have one of the following values:

Value	Description
_blank	The response is displayed in a new window or tab
_self	The response is displayed in the current window
_parent	The response is displayed in the parent frame
_top	The response is displayed in the full body of the window
framename	The response is displayed in a named iframe

The default value is _self which means that the response will open in the current window.

Example

Here, the submitted result will open in a new browser tab:

The Method Attribute

The method attribute specifies the HTTP method to be used when submitting the form data.

The form-data can be sent as URL variables (with method=»get» ) or as HTTP post transaction (with method=»post» ).

The default HTTP method when submitting form data is GET.

Example

This example uses the GET method when submitting the form data:

Example

This example uses the POST method when submitting the form data:

• Appends the form data to the URL, in name/value pairs
• NEVER use GET to send sensitive data! (the submitted form data is visible in the URL!)
• The length of a URL is limited (2048 characters)
• Useful for form submissions where a user wants to bookmark the result
• GET is good for non-secure data, like query strings in Google

• Appends the form data inside the body of the HTTP request (the submitted form data is not shown in the URL)
• POST has no size limitations, and can be used to send large amounts of data.
• Form submissions with POST cannot be bookmarked

Tip: Always use POST if the form data contains sensitive or personal information!

The Autocomplete Attribute

The autocomplete attribute specifies whether a form should have autocomplete on or off.

When autocomplete is on, the browser automatically complete values based on values that the user has entered before.

Example

A form with autocomplete on:

The Novalidate Attribute

The novalidate attribute is a boolean attribute.

When present, it specifies that the form-data (input) should not be validated when submitted.

Example

A form with a novalidate attribute:

HTML Exercises

List of All Attributes

Attribute	Description
accept-charset	Specifies the character encodings used for form submission
action	Specifies where to send the form-data when a form is submitted
autocomplete	Specifies whether a form should have autocomplete on or off
enctype	Specifies how the form-data should be encoded when submitting it to the server (only for method=»post»)
method	Specifies the HTTP method to use when sending form-data
name	Specifies the name of the form
novalidate	Specifies that the form should not be validated when submitted
rel	Specifies the relationship between a linked resource and the current document
target	Specifies where to display the response that is received after submitting the form

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HTML Tag

An HTML form with two input fields and one submit button:

More «Try it Yourself» examples below.

Definition and Usage

The tag is used to create an HTML form for user input.

The element can contain one or more of the following form elements:

Browser Support

Attributes

Attribute	Value	Description
accept-charset	character_set	Specifies the character encodings that are to be used for the form submission
action	URL	Specifies where to send the form-data when a form is submitted
autocomplete	on off	Specifies whether a form should have autocomplete on or off
enctype	application/x-www-form-urlencoded multipart/form-data text/plain	Specifies how the form-data should be encoded when submitting it to the server (only for method=»post»)
method	get post	Specifies the HTTP method to use when sending form-data
name	text	Specifies the name of a form
novalidate	novalidate	Specifies that the form should not be validated when submitted
rel	external help license next nofollow noopener noreferrer opener prev search	Specifies the relationship between a linked resource and the current document
target	_blank _self _parent _top	Specifies where to display the response that is received after submitting the form

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HTML Forms

An HTML form is used to collect user input. The user input is most often sent to a server for processing.

Example

The Element

The HTML element is used to create an HTML form for user input:

The 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 this chapter: HTML Form Elements.

The Element

The HTML element is the most used form element.

An element can be displayed in many ways, depending on the type attribute.

Type	Description
	Displays a single-line text input field
	Displays a radio button (for selecting one of many choices)
	Displays a checkbox (for selecting zero or more of many choices)
	Displays a submit button (for submitting the form)
	Displays a clickable button

All the different input types are covered in this chapter: HTML Input Types.

Text Fields

The defines a single-line input field for text input.

Example

A form with input fields for text:

This is how the HTML code above will be displayed in a browser:

Note: The form itself is not visible. Also note that the default width of an input field is 20 characters.

The Element

Notice the use of the element in the example above.

The tag defines a label for many form elements.

The element is useful for screen-reader users, because the screen-reader will read out loud the label when the user focuses on the input element.

The element also helps users who have difficulty clicking on very small regions (such as radio buttons or checkboxes) — because when the user clicks the text within the element, it toggles the radio button/checkbox.

The for attribute of the tag should be equal to the id attribute of the element to bind them together.

Radio Buttons

The defines a radio button.

Radio buttons let a user select ONE of a limited number of choices.

Example

A form with radio buttons:

Choose your favorite Web language:

This is how the HTML code above will be displayed in a browser:

Choose your favorite Web language:

Checkboxes

The defines a checkbox.

Checkboxes let a user select ZERO or MORE options of a limited number of choices.

Example

This is how the HTML code above will be displayed in a browser:

I have a bike
I have a car
I have a boat

The Submit Button

The defines a button for submitting the form data to a form-handler.

The form-handler is typically a file on the server with a script for processing input data.

The form-handler is specified in the form’s action attribute.

Example

A form with a submit button:

This is how the HTML code above will be displayed in a browser:

The Name Attribute for

Notice that each input field must have a name attribute to be submitted.

If the name attribute is omitted, the value of the input field will not be sent at all.

Example

This example will not submit the value of the «First name» input field:

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