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1. www.w3schools.com › TAgs › tag_optgroupHTML <optgroup> Tag - W3Schools

   www.w3schools.com › TAgs › tag_optgroup

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   The <optgroup> tag is used to group related options in a <select> element (drop-down list). If you have a long list of options, groups of related options are easier to handle for a user.

   • Label

     Label - HTML <optgroup> Tag - W3Schools

   • Option

     Definition and Usage. The <option> tag defines an option in...

   • Ol

     Ol - HTML <optgroup> Tag - W3Schools

   • HTML

     When present, it specifies that an option-group should be...

   • OptionGroup Object

     OptionGroup Object - HTML <optgroup> Tag - W3Schools

2. developer.mozilla.org › en-US › docs<optgroup>: The Option Group element - MDN Web Docs

   developer.mozilla.org › en-US › docs

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   25 lip 2024 · The <optgroup> HTML element creates a grouping of options within a <select> element.

3. riptutorial.com › html › exampleHTML Tutorial => Option Groups

   riptutorial.com › html › example

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   Example. You can neatly group your options within a selection menu in order to provide a more structured layout in a long list of options by using the <optgroup> element. The syntax is very basic, by simply using the element with a label attribute to identify the title for the group, and containing zero or more options that should be within ...

4. stackoverflow.com › questions › 14029080How to add Option group in HTML select? - Stack Overflow

   stackoverflow.com › questions › 14029080

   11 lip 2016 · 4 Answers. Sorted by: 55. By using the optgroup tag. Here is an example: <select name="browser"> <optgroup label="Firefox"> <option value="2.0 or higher"> Firefox 2.0 or higher. </option>

5. www.techonthenet.com › html › elementsHTML: <optgroup> tag - TechOnTheNet

   www.techonthenet.com › html › elements

   The <optgroup> tag organizes a set of <option> tags into an option group with a group heading. The label value for the <optgroup> will appear as a gray heading. All of the grouped items will appear below the heading as an indented list of options.

6. www.w3docs.com › learn-html › html-optgroup-tagHTML <optgroup> Tag - W3docs

   www.w3docs.com › learn-html › html-optgroup-tag

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   Syntax. The <optgroup>tag comes in pairs. The content is written between the opening (<optgroup>) and closing (</optgroup>) tags. The <optgroup>tag is generally used with the valueattribute, to specify which value is sent to the server for further processing. Example of the HTML <optgroup>tag:

7. webtutor.dev › html › html-optgroup-tagHTML optgroup Tag - WebTutor

   webtutor.dev › html › html-optgroup-tag

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   The optgroup tag generates a group of options within a <select> control's dropdown list of values. A sequence of <option> ...