html, body {
  width:  100%;
  height: 100%;
  margin: 0px;
  padding:0px;
  border: 0;
  /*  Disable scrollbars */
  overflow: hidden; 
  /* No floating content on sides */
  display: block;  
}
canvas { 
  position: absolute;
  left: 0px;
  top: 0px;
}