body{ height:100vh;padding:0;margin:0;}
svg {
  width: 100vw;
  height: 100vh;
  overflow:visible;
  position: absolute;
  margin: auto;
  left:0;right:0; top:0;bottom:0;
}
polyline {
  pointer-events: none;
  stroke: red;
  stroke-width: 0.5;
  fill: none;
}
path {
  fill: none;
  stroke: black; 
  pointer-events:stroke;
  stroke-width:3px;
}

path:hover{cursor:pointer;}
circle {
  cursor: pointer;
  stroke:black;
  stroke-width:.5;
}

.cp{fill:black;}

.independent{fill:gold;}
.dependent{fill:Chartreuse;}


image{clip-path:url(#clip)}