![html - How to show validation message below horizontal radio buttons in Bootstrap 4.1.3? - Stack Overflow html - How to show validation message below horizontal radio buttons in Bootstrap 4.1.3? - Stack Overflow](https://i.stack.imgur.com/8Qwo9.png)
html - How to show validation message below horizontal radio buttons in Bootstrap 4.1.3? - Stack Overflow
![forms - Is required validation possible on a switch/toggle control? - User Experience Stack Exchange forms - Is required validation possible on a switch/toggle control? - User Experience Stack Exchange](https://i.stack.imgur.com/th7av.jpg)
forms - Is required validation possible on a switch/toggle control? - User Experience Stack Exchange
Validation states not working on radio, checkbox, form-control-static · Issue #10522 · twbs/bootstrap · GitHub
![invalid-feedback doesn't show for .input-group with an invalid control · Issue #23454 · twbs/bootstrap · GitHub invalid-feedback doesn't show for .input-group with an invalid control · Issue #23454 · twbs/bootstrap · GitHub](https://user-images.githubusercontent.com/98681/77345305-aaff5600-6cf1-11ea-8cff-136883f5ae11.png)
invalid-feedback doesn't show for .input-group with an invalid control · Issue #23454 · twbs/bootstrap · GitHub
![How to Display Validation Message for Radio Buttons with Inline Images using Bootstrap 4 ? - GeeksforGeeks How to Display Validation Message for Radio Buttons with Inline Images using Bootstrap 4 ? - GeeksforGeeks](https://media.geeksforgeeks.org/wp-content/uploads/20200114125700/20200114-125551.gif)