<head>
...
<script src="js/jquery.js"></script>
<script src="jquery.hovercap.js"></script>
<script>
$(function() {
$('.target').hovercap({
toggleElement: '.target__caption'
});
});
</script>
</head>
<body>
<div class="target">
<div class="target__image"><img src="..." alt=""></div>
<div class="target__caption">Content...</div>
</div>
...
</body>

$(function() {
$('.target').hovercap({
toggleElement: '.example__caption',
toggleAnimataion: 'fade'
});
});

$(function() {
$('.target').hovercap({
toggleElement: '.example__caption',
toggleAnimataion: 'slide',
toggleDirection: 'toTop'
});
});

$(function() {
$('.target').hovercap({
toggleElement: '.example__caption',
toggleAnimataion: 'slide',
toggleDirection: 'toRight'
});
});

$(function() {
$('.target').hovercap({
toggleElement: '.example__caption',
toggleAnimataion: 'slide',
toggleDirection: 'toBottom'
});
});

$(function() {
$('.target').hovercap({
toggleElement: '.example__caption',
toggleAnimataion: 'slide',
toggleDirection: 'toLeft'
});
});

2014, Sato Daiki.