.mytree,
.mytree ul {
    margin:0;
    padding:0;
    list-style:none;
}
/*
.mytree {
    margin-left: 16em;
}

.mytree > li > div.treeButtons {
    display: inline-block;
    position: relative;
    left:-15em;
}

.treeLabel {
    display: inline-block;
    position: relative;
    left:-200px;
}

.treeButtons {
    width: 200px;
}
.mytree > li > ul > li> div.treeButtons {
    display: inline-block;
    position: relative;
    left:-17.5em;
}

.mytree > li > ul > li > ul > li> div.treeButtons {
    display: inline-block;
    position: relative;
    left:-19.5em;
}
*/
.mytree ul {
    margin-left:1em; /* indentation */
    position:relative;
}

.mytree ul ul {margin-left:.5em} /* (indentation/2) */

.mytree ul:before {
    content:"";
    display:block;
    width:0;
    position:absolute;
    top:0;
    bottom:0;
    left:0;
    border-left:1px solid;
}

.mytree li {
    margin:0;
    padding:0 1.5em; /* indentation + .5em */
    line-height:2.2em; /* default list item's `line-height` */
    color:#369;
    font-weight:bold;
    position:relative;
}

.mytree ul li:before {
    content:"";
    display:block;
    width:10px; /* same with indentation */
    height:0;
    border-top:1px solid;
    margin-top:-1px; /* border top width */
    position:absolute;
    top:1em; /* (line-height/2) */
    left:0;
}

.mytree ul li:last-child:before {
    background:white; /* same with body background */
    height:auto;
    top:1em; /* (line-height/2) */
    bottom:0;
}

.hover-cursor { cursor: pointer; cursor: hand; }