When using Bootstrap 3 are there official classes to use with a Dropdown to create a flyout or Submenu? Are there classes to create classes that drop up or are these generally custom classes?
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                    It's already answered [here](https://stackoverflow.com/questions/18023493/bootstrap-dropdown-sub-menu-missing). – vee Dec 22 '21 at 16:52
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        did you think of this?
https://getbootstrap.com/docs/3.3/components/#nav-dropdowns
but you can also use custom classes
 
    
    
        richard
        
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                    I did, there are no examples of Submenus in Bootstrap's documentation for version 3. Same for a Drop Up. – Tanooki Mario Dec 22 '21 at 16:22
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                    try, this way: https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_ref_js_dropdown_multilevel_css&stacked=h – richard Dec 22 '21 at 16:25
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                    So you're saying with the code example that a Submenu isn't a part of Bootstrap's 3 classes and you've created your own class to demonstrate that, yes Submenus can be easily created in Bootstrap 3. But there isn't an official class to do so? – Tanooki Mario Dec 22 '21 at 17:20
