.tipsy {
	font-size: 16px;
}

 body {
    background-color: #6495ED;
    color:white;
 }
    
 svg {
  width:900px;
  height: 700px;
  
 }
 
 .axis path,
 .axis line {
 fill: none;
  stroke:white;
 }
 .axis text {
    fill: white;
 }
 
 .brush .extent {
  stroke: #fff;
  fill:#fff;
  fill-opacity: 0.2;
  shape-rendering: crispEdges;
}