.Node
{    
width:30px;
height:30px;
border-radius:50%;
background-color:rgba(0,0,0,0.5);
z-index:1000;    
}

.Node:hover
{
  cursor:pointer;
  border:4px solid #A8A8A8;
  background:#ddd; 
  transition:80ms;    
}

.AddChild
{
    position:relative;
    left:22px;
    top:2px;
    width:52px;
    font-size:10px;
    height:18px;
    border-radius:0 3px 3px 0;
    background:#A8A8A8;
    text-align:center;
    padding-top:1px;
    color:#fff;
}