.width5
    {
        width: 50px;
    }  
    .width6
    {
        width: 60px;
    }  
    .width7
    {
        width: 70px;
    }  
    .width8
    {
        width: 80px;
    }  
    .width9
    {
        width: 90px;
    }  
    
/*套在Select外層，用於隱藏Select框*/
.DivSelect
{
    float:left;
    position
 
: relative;
    background-color: transparent;
    height: 17px;
    overflow: hidden; /*隱藏了小三角，寬度為比select寬度少20px*/
    border-width:0px;
    border-top-style: none; 
    border-right-style: none; 
    border-left-style: none; 
    border-bottom-style: none;
}

/*設定Select樣式*/
.SelectList
{
    position: relative
 
;
    background-color: transparent;
    TOP:   -2px;
    left:-2px;
    border-width: 0px;
    border-top-style: none; 
    border-right-style: none; 
    border-left-style: none; 
    border-bottom-style: none;
    display:block;
    height: 20px;
    overflow:hidden;
}