#div_txt {  
            position: relative;  
        }  
  
        #div_items {  
           /*  position: relative; */  
            width: 100%;  
            height: auto;  
            border: 1px solid #66afe9;  
            border-top: 0px;  
            overflow: auto;  
            display: none;  
        }  
  
        .div_item {  
            width: 100%;  
           /*  height: 20px; */  
            margin-top: 1px;  
            font-size: 13px;  
            line-height: 20px;  
        }