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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

     HTML - HTML <optgroup> Tag - W3Schools

   • OptionGroup Object

     Large collection of code snippets for HTML, CSS and...

2. stackoverflow.com › questions › 7452479How to change the style of a <select>'s <optgroup> label?

   stackoverflow.com › questions › 7452479

   On most browsers (tested on latest IE and FF), you can easily change the optgroup's label with CSS only: select optgroup{ background: #000; color: #fff; font-style: normal; font-weight: normal; } Obviously, you can set any classname instead of the select html tag.

3. stackoverflow.com › questions › 6415747css - Styling option group label - Stack Overflow

   stackoverflow.com › questions › 6415747

   20 cze 2011 · So, setting the following css style for optgroup will give you red text on a gray background. optgroup { background-color: gray; color: red; } If nothing else is done, your entire list will be red text on a gray background.

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

   webkod.pl › kurs-html › tagi

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   Przeznaczenie atrybutu disabled. Atrybut disabled wykorzystany wraz z elementem optgroup pozwala nam określić czy dany element optgroup oraz treść reprezentowana przez zawartość danego elementu optgroup powinni zostać wyłączeni z interakcji z użytkownikiem.

5. www.dofactory.com › html › optgroupHTML <optgroup> style Attribute - Dofactory

   www.dofactory.com › html › optgroup

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   30 wrz 2023 · A style attribute on an <optgroup> tag assigns a unique style to the option group. Its value is CSS that defines the appearance of the option group.

6. code.mu › en › markupThe optgroup tag - grouping of list items | Trepachev Dmitry -...

   code.mu › en › markup

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   The optgroup tag groups select drop-down list items in an HTML form. 51 of 133 menu. Markup JavaScript HTML manual CSS manual Prime book Practice book Supreme book Manual. The optgroup tag. The optgroup tag groups the items of a option drop-down list select.

7. www.w3schools.com › tags › tryitW3Schools Tryit Editor

   www.w3schools.com › tags › tryit

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   The W3Schools online code editor allows you to edit code and view the result in your browser