force.css

circle.node {
  stroke-width: 2;
}

line.link {
  stroke: #555;
  stroke-opacity: 1.;
  /*stroke-width: 2px;*/
}
.container {
    width: 98%;
    height: 98%;
    background: aqua;
    margin: auto;
    padding: 10px;
}
.one {
    width: 65%;
    height: 95%;
    background: red;
    float: left;
}
.two {
    width: 35%;
    height: 95%;
    background: black;
}



div.tooltip {	
    position: absolute;			
    text-align: center;			
    width: 60px;					
    height: 28px;					
    padding: 2px;				
    font: 12px sans-serif;		
    background: lightsteelblue;	
    border: 0px;		
    border-radius: 8px;			
    pointer-events: none;			
}



.button rect {
  stroke: #999faa; /* navy 40% */
  stroke-width: 2px;
}

.button rect.pressed {
  fill: #000f2b; /* navy 100% */
}

.button #gradient-start {
  stop-color: #999faa; /* navy 40% */
  stop-opacity: 1;
}

.button #gradient-stop {
  stop-color: #4d576b; /* navy 70% */
  stop-opacity: 1;
}

.button #gradient-start.active, .button #gradient-start.pressed {
  stop-color: #4d576b; /* navy 70% */
}

.button #gradient-stop.active, .button #gradient-stop.pressed {
  stop-color: #000f2b; /* navy 100% */
}

.button text {
  font-size: 30px;
  fill: #eee;
  pointer-events: none;
  text-anchor: middle;
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
}