Interactive demo
Just put this to any tag data-container="body" title="Popover title" data-toggle="popover" data-placement="top" data-content="..."
                                    
                                        <button type="button" class="btn btn-secondary" data-container="body" title="Popover title" data-toggle="popover" data-placement="top" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
                                            Popover on top
                                        </button>
                                        <button type="button" class="btn btn-secondary" data-container="body" title="Popover title" data-toggle="popover" data-placement="right" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
                                            Popover on right
                                        </button>
                                        <button type="button" class="btn btn-secondary" data-container="body" title="Popover title" data-toggle="popover" data-placement="bottom" data-content="Vivamus
                                            sagittis lacus vel augue laoreet rutrum faucibus.">
                                            Popover on bottom
                                        </button>
                                        <button type="button" class="btn btn-secondary" data-container="body" title="Popover title" data-toggle="popover" data-placement="left" data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus.">
                                            Popover on left
                                        </button>