div#mainBody
{
        float: right:
        width: 100%;
        min-height: 400px;
        height: 400px;
        background-color: #fff;
        margin-right: 16px;    
        padding: 20px 10px 0px 20px;
        background-image: url();
        background-repeat: repeat-y;
        background-position: left top;
}

div#ie7
{
        float: left;
        border: 1px solid red;
        height: 200px;
        background-color: #fff;
        background-image: url(../images/leftblock.gif);
        background-repeat: repeat-y;
        background-position: left top;
}