slideTop

<!DOCTYPE html>
<html>
<head>
<title>jQuery Image Captions Tutorial | alijafarian.com</title>
<style type="text/css">
* {
    margin: 0;
    padding: 0;
}
body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 100%;
    color: #666;
}
#wrapper {
    margin: 20px auto;
    width: 960px;
}
h1 {
    text-align: center;
    margin: 0 0 20px;
}
.grid-block-container {
    float: left;
    width: 990px;
    margin: 20px 0 0 -30px;
}
.grid-block {
    position: relative;
    float: left;
    width: 300px;
    height: 200px;
    margin: 0 0 30px 30px;
}
.grid-block h4 {
    font-size: .9em;
    color: #333;
    background: #f5f5f5;
    margin: 0;
    padding: 10px;
    border: 1px solid #ddd;
}
.caption {
    display: none;
    position: absolute;
    bottom: 0;
    left: 0;
    background: url(images/trans-black-50.png);
    width: 100%;
    height: 100%;
}
.caption h3, .caption p {
    color: #fff;
    margin: 20px;
}
.caption h3 {
    margin: 20px 20px 10px;
}
.caption p {
    font-size: .75em;
    line-height: 1.5em;
    margin: 0 20px 15px;
}
.caption a.learn-more {
    padding: 5px 10px;
    background: #08c;
    color: #fff;
    border-radius: 2px;
    -moz-border-radius: 2px;
    font-weight: bold;
    text-decoration: none;
}
.caption a.learn-more:hover {
    background: #fff;
    color: #08c;
}
</style>
</head>

<body>
<div id="wrapper">
  <div class="grid-block-container">

    <!--/.grid-block-->

    <!--/.grid-block-->

    <div class="grid-block slide"> <img src="http://crossfiremedia.realpage.com/voyageratthespace/photos/ph1065_w1050_h174.png" />
      <div class="caption">
        <h3>Caption Title</h3>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
        <p><a href="#" class="learn-more">Learn more</a></p>
      </div>
    </div>
    <!--/.grid-block-->

  </div>
  <!--/.grid-container-->

</div>
<!--/.wrapper-->

<!---------- JS ---------->
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function($) {
    $('.slide').hover(function () {
        $(this).children('.caption').slideToggle(250);
    });
});
</script>
</body>
</html>