body {
  background-color: black;

  /* leave it to hide the scrollbars */
  overflow: hidden;

  //width: 800px;
  //height: 800px;
  max-width: 100%;
  max-height: 100%;
}

#thecanvas {
width: 100%;
height: 100vh;
}

/*
#thecanvas {
width: 800px;
height: 800px;
}*/


* {
   margin: 0;
   padding: 0;
}