.content_container {
        float:left;	 
        width:900px;
        margin:0px;
        padding:0px;
        box-sizing:content-box;

}

.content_column_main {
        float:left;
        width:440px;
        margin:0px;
        padding:0px;
        box-sizing:content-box;

}

.content_column_right {
        float:right;
        text-align:left;
        width:450px;
        margin:0px;
        padding:0px;
        padding-left:10px;
        box-sizing:content-box;
        -moz-box-sizing:content-box;
}