The select trong html w3schools

Example

Create a drop-down list with four options:

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Definition and Usage
Browser Support
Global Attributes
Event Attributes
More Examples
Related Pages
Default CSS Settings
Definition and Usage
Browser Support
Definition and Usage
Browser Support
Global Attributes
Event Attributes
More Examples
Related Pages
Default CSS Settings

Choose a car:

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More "Try it Yourself" examples below.

Definition and Usage

The element is most often used in a form, to collect user input.

The name attribute is needed to reference the form data after the form is submitted (if you omit the name attribute, no data from the drop-down list will be submitted).

The id attribute is needed to associate the drop-down list with a label.

The

Element
	Yes	Yes	Yes	Yes	Yes

`Attributes`


Attribute Value Description
autofocus
autofocus
Specifies that the drop-down list should automatically get focus when the page loads
disabled
disabled
Specifies that a drop-down list should be disabled
form
form_id
Defines which form the drop-down list belongs to
multiple
multiple
Specifies that multiple options can be selected at once
name
name
Defines a name for the drop-down list
required
required
Specifies that the user is required to select a value before submitting the form
size
number
Defines the number of visible options in a drop-down list
Global Attributes
The  tag also supports the Event Attributes in HTML.



More Examples
Example
Use 
   
     
     
   
   
     
     

  
  
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Related Pages
HTML DOM reference: Select Object
CSS Tutorial: Styling Forms
Default CSS Settings
None.
 
 
 
❮ HTML 
Example
A drop-down list with a pre-selected option:
Choose a car:
Try it Yourself »



Definition and Usage
The selected attribute is a boolean attribute.
When present, it specifies that an option should be pre-selected when the page loads.
The pre-selected option will be displayed first in the drop-down list.
Tip: The
selected attribute can also be set after the page loads, with a JavaScript.
Browser Support
Attribute 
selected
Yes
Yes
Yes
Yes
Yes
Syntax
❮ HTML 
 
  
Example
A drop-down list with four options:
Choose a car:
Try it Yourself »
More "Try it Yourself" examples below.
Definition and Usage
The  tag defines an option in a select list.
  elements go inside a 
Element 
Yes
Yes
Yes
Yes
Yes
Attributes
Attribute Value Description
disabled
disabled
Specifies that an option should be disabled
label
text
Specifies a shorter label for an option
selected
selected
Specifies that an option should be pre-selected when the page loads
value
text
Specifies the value to be sent to a server
Global Attributes
The  tag also supports the Global Attributes in HTML.
Event Attributes
The  tag also supports the Event Attributes in HTML.
More Examples
Example
Use of 
Choose your browser from the list:
 

   
Try
it Yourself »
Example
Use of  elements:
Choose a car:
 
Try it Yourself »
Related Pages
HTML DOM reference: Option Object
Default CSS Settings
None.

The select trong html w3schools

Example

Definition and Usage

Attributes

Global Attributes

More Examples

Example

Related Pages

Default CSS Settings

Example

Definition and Usage

Browser Support

Syntax

Example

Definition and Usage

Attributes

Global Attributes

Event Attributes

More Examples

Example

Example

Related Pages

Default CSS Settings

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`Attributes`