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According to the HTML5 spec (dev.w3.org/html5/markup/optgroup.html#optgroup) the only permitted parent of optgroup is select, which suggest that no, this is not supported in HTML5. –
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.
In this tutorial, we have explored the select, option, and optgroup elements in HTML forms. By understanding these elements and their attributes, you can create more organized and user-friendly dropdown lists in your forms.
The 2000-2010 Recommendations from the W3C HTML Working Group defined the HTML namespace for the optgroup element type name along with the names of all HTML element types.
In HTML, the select element is used to create both multi-select lists and combo boxes. The various allowed options are each indicated with option elements. To group options together, use the optgroup element, with the related option elements inside that element.
25 lip 2024 · This element includes the global attributes. If this Boolean attribute is set, none of the items in this option group is selectable. Often browsers grey out such control and it won't receive any browsing events, like mouse clicks or focus-related ones.
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 that group.
