.box_all{  
    overflow: hidden;
}
.box {
}
.boxdown{           
    cursor:pointer;
    border:1px solid #EEEEEE;
    width:60px;
    height:14px;   
    background: #FFFFFF url(../images/down.png) no-repeat 23px;
    margin-left:150px;  
    margin-top:-2px;     
    border-top: none; 
	margin:0 auto; 
      
}
.up{
    cursor:pointer;
    border:1px solid #EEEEEE;
    width:60px;
    height:14px;   
    background: #FFFFFF url(../images/up.png) no-repeat 20px;
    margin-left:150px;  
    margin-top:-2px;     
    border-top: none; 
	margin:0 auto; 
}