.drop-down { 
    position: relative;  
    display: inline-block;    
    width: auto;       
    margin-top: 0;   
    font-family: verdana;  
}      
.drop-down select {   
    display: none;    
}      
.drop-down .select-list {   
    position: absolute;     
    top: 0;      
    left: 0;     
    z-index: 1;    
    margin-top: 40px;    
    padding: 0;         
    background-color: #595959;      
}      
.drop-down .select-list li {   
    display: none;      
}    
.drop-down .select-list li span {  
    display: inline-block;      
    min-height: 40px;        
    min-width: 280px;      
    width: 100%;        
    padding: 5px 15px 5px 35px;     
    background-color: #595959;     
    background-position: left 10px center;   
    background-repeat: no-repeat;       
    font-size: 16px;       
    text-align: left;       
    color: #FFF;        
    opacity: 0.7;      
    box-sizing: border-box;     
}     
.drop-down .select-list li span:hover,  
.drop-down .select-list li span:focus {     
    opacity: 1;     
}