20元左右细烟大全及价格 HTML Forms

HTML Forms ❮ Previous Next ❯

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

Example Try it Yourself » The Element

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

. form elements .

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.

Here are some examples:

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:

  First name:    Last name:  Try it Yourself »

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 he 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 forite Web language:

    HTML    CSS    JaScript

Try it Yourself »

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

Choose your forite Web language:

Checkboxes

The defines a checkbox.

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

Example

A form with checkboxes:

    I he a bike    I he a car    I he a boat Try it Yourself »

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

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:

  First name:    Last name:    Try it Yourself »

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

The Name Attribute for

Notice that each input field must he 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: 

  First name:    Try it Yourself » Video: HTML Forms ❮ Previous Next ❯ ★ +1   Track your progress - it's free!   Log in Sign Up