.left_content
{
    width:473px;
    margin-top:5px;
    height:inherit;
    height:auto;
}

.middle_content
{
    height:inherit;
    vertical-align:top;
}

.content_box
{
    height:auto;
}

.right_content
{
    width:120px;
    margin-top:5px;
    margin-left:300px;
    height:inherit;
    height:auto;
}

.topContent 
{
    width:250px;
    height:auto;
}

.centerContent
{
    margin-top:12px;
    width:250px;
    height:inherit;
}
 
.bottomContent
{
    margin-top:12px;
    width:250px;
    height:auto;
}