body {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  overflow: hidden;
}

#graph {
  position: absolute;
  bottom: 5vw;
  left: 5vw;
  width: 90vw;
  height: 36vw;
  background-image: url('Grid.png');
  background-size: 2vw;
}

h1 {
  text-align: center;
}

#button1 {
  position: absolute;
  bottom: 5px;
  right: 5px;
}

#button2 {
  position: absolute;
  bottom: 30px;
  right: 5px;
}

#canvas {
  position:absolute;
  width:100%;
  height:100%;
}

#type1 {
  display: none;
}

#type2 {
  display: none;
}

#type3 {
  display: none;
}