Hi crajsesh,
Please check with below code
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<style type="text/css">
.mouseleave
{
position: fixed;
top: 30%;
right: 0px;
}
</style>
<script type="text/javascript">
$(function () {
$('.inside').hover(
function () {
$(this).animate({
height: '200px',
width: '200px'
}, 200);
$('[id*=lblShowMessage]')[0].style.display = 'none';
$('[id*=lblMessageDisplay]')[0].style.display = 'block';
});
$('.inside').bind("mouseleave", function () {
$('[id*=lblShowMessage]')[0].style.display = 'block';
$('[id*=lblMessageDisplay]')[0].style.display = 'none';
$('[id*=lblShowMessage]').addClass("mouseleave");
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<div id="dvFixed" style="position: fixed; top: 30%; right: 0px;">
<div class="inside">
<asp:Label ID="lblShowMessage" Text="Test" runat="server" />
<asp:Label ID="lblMessageDisplay" Style="display: none" Text="Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
runat="server" />
</div>
</div>
</div>
</form>
</body>
</html>
Or
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
$(function () {
$('#dvFixed').hover(
function () { $('#Details').show(); $('#dvFixed').hide(); },
function () { $('#Details').hide(); $('#dvFixed').show(); }
);
});
</script>
</head>
<body>
<div id="dvFixed" style="position: fixed; top: 30%; right: 0px;">
<img src="https://static.flickr.com/66/199481236_dc98b5abb3_s.jpg" height="30px" width="30px" alt="Facebook" />
</div>
<div id="Details" style="position: fixed; top: 30%; right: 0px; display: none;">
This is test DIV.
</div>
</body>
</html>
Demo