#list_all{
    text-align:left;
    padding:0px;
    margin:0px auto;
    width:900px;

    /*border: solid 1px #99CCFF;*/
}

#list_main{
    float:right;
    width:700px;
    margin:0px;
    padding:0px;

    /*border: solid 1px #99CCFF;*/
}

#list_side{
    float:left;
    width:195px;
    margin:0px;
    padding:0px;
    
    /*border: solid 1px #99CCFF;*/
}