html, body, main {
  margin: 0px;
  padding: 0px;
  width: 100%;
  height: 100%;
  background-color: #292B2F;
}
canvas {
  display: block;
  margin: 0px;
  padding: 0px;
  width: 100%;
  height: 100%;
  background-color: #292B2F;
}