.view-structure, .view-structure ul {
    margin:0;padding:0;
    list-style:none;
} 
.view-structure ul {
    margin-left:1em;
    position:relative; 
} 
.view-structure ul:before {
    content:"";
    display:block;
    width:0;     
    position:absolute;
    top:0;bottom:0;left:0;
    border-left:2px solid #e1e1e1;
} 
.view-structure li{
    margin:0;
    padding:0 1em;
    position:relative;
}
.view-structure ul li:before {
    content:"";
    display:block;
    width:15px;
    height:0;
    border-top:2px solid #e1e1e1;
    margin-top:20px;
    position:absolute;
    top:1em;
    left:0 
}
.view-structure ul li:last-child:before {
    background:#fff;
    height:auto;
    top:1em;
    bottom:0; 
}

.padding-top-15 {
    padding-top: 15px;
}