File: ltr.css

ul.parent{
    /*border-left: 1px dotted black;*/
   /* list-style-image: url('folder.png');*/
   list-style-image: none;
   list-style: none;
       margin: 0;
    padding-left : 11px;
    list-style-position: outside;
}
ins{
   background-image : url('ltr.gif') ;
   background-repeat : no-repet; 
  /*  width: 5px;
    height: 5px; */
    text-decoration: none;
    display: inline-block;
    width: 15px;
    height: 15px;
}
.insRootOpen{
    
    background-position: -72px 0px;

}
.insRootClose ins{
    
    background-position: -54px 0px;
}
.insRootClose>li>ul{
 display: none;   
}
.insNoChild ins{
    
    background-position: -36px 0px;
}