< InputGroup.Radio aria-label = " Radio button for following text input " /> < FormControl aria-label = " Text input with radio button " /> Multiple inputs # While multiple inputs are supported visually, validation styles are only available for input groups with a single input. Bootstrap Form Control States. Bootstrap 4 Basic and Custom Input. Another interesting option is to have a split button. I would suggest you to wrap textarea tag inside a [code ]div = “form-group"[/code] and add [code ]class = “form-control”[/code] to your textarea. So now you know how to set up a