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

   www.w3schools.com › TAgs › tag_optgroup

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   Definition and Usage. 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

     HTML - HTML <optgroup> Tag - W3Schools

   • 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 · Learn how to use the HTML element to group options in a select element. See the attributes, examples, browser compatibility and technical summary of this element.

3. www.kurshtml.edu.pl › html › optgroup,htmlOPTGROUP - Komendy HTML 4.01 - Kurs HTML dla zielonych

   www.kurshtml.edu.pl › html › optgroup,html

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   9 kwi 2012 · OPTGROUP. Grupuje opcje (OPTION) w liście wyboru (SELECT). Zobacz więcej... Atrybuty: CLASS="klasa". Przypisuje nazwę klasy (CSS) lub nazwy klas do elementu, które muszą być rozdzielone białymi znakami. DIR="kierunek".

4. webkod.pl › kurs-html › tagiWyjaśnienie elementu optgroup - webkod.pl

   webkod.pl › kurs-html › tagi

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   Charakterystyka elementu optgroup oraz jego atrybuty. Element HTML reprezentujący jedną grupę opcji wyboru.

5. www.w3schools.com › tags › tryhtml_optgroupThe optgroup element - W3Schools

   www.w3schools.com › tags › tryhtml_optgroup

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   The optgroup element. The optgroup tag is used to group related options in a drop-down list:

6. 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.

7. devdoc.net › web › developer<optgroup> - HTML | MDN - devdoc.net

   devdoc.net › web › developer

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   1 sty 2017 · Learn how to use the HTML element to create a grouping of options within a select element. See the attributes, specifications, browser compatibility and examples of this form-related element.