<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#content_container {
/* top:-40px; */
position:relative;
width:625px;
height:auto;
min-height:200px;
z-index:2;
border: 1px solid red;
padding-top: 50px;
}
#second_post_main {
position:relative;
background:#eee;
width:550px;
height:auto;
min-height:300px;
margin:0 auto;
/* top:50px; */
border: 1px solid green;
}
</style>
<script type="text/javascript">
</script>
</head>
<body>
<div id="content_container">
<div id="second_post_main">
</div>
</div>
</body>
</html>