I do not really understand what is the problem with flexible <select> implementation in browser. In my Sciter[1] the following are supported ( see screenshot [

I do not really understand what is the problem with flexible <select> implementation in browser. In my Sciter[1] the following are supported ( see screenshot [2] ): <select type="dropdown"> - select with popup <select type="list"> - select list <select type="tree"> - hierarchical select (a.k.a. tree view) and all of them may have <select multiple> - multi-select, value = array[] <select multiple="checkmarks"> - multi-select, value = array[] select type="tree" may have also <select type="tree" treelines> - draw treelines <select> and <option>'s may have arbitrary markup inside (<hr>,<img>, whatever), even more any DOM element may have role="option" defined making it a selectable option : <li role="option">...</li> <option value="Sc"><code>Sc</code>Scandium</option> And as a bonus, by declaring different flows in CSS in list you may have: select { flow:horizontal; } // horizontal select select { flow:vertical-wrap; } // multicolumn select [1] https://sciter.com https://sciter.com [2] https://sciter.com/wp-content/uploads/2024/01/select-variants.png https://sciter.com/wp-content/uploads/2024/01/select-variant...