Bootstrap

Popover on hover

Popover on hover
<a href="#" role="button" class="btn btn-secondary popoverDemo" data-trigger="hover" data-toggle="popover" data-placement="top" title="Titel van de popover" data-content="Content van de popover">popover</a>

<script>
$(document).ready(function(){
$('.popoverDemo').popover();
});
</script>

Bootstrap lessons for beginners
Popover on hover